The vibrating car is analogous to one of the energy levels of the electron, which is the point at which the electron experiences resonance. wrote. 48) Which of these does not describe a metal at room temperature? 68) How do we account for the great variety of substances in the world? Explain, What volume, in liters, of 4.0 M LiBr solution can be made using 100.0 g LiBr?, What is the molarity of a solution made by dissolving 2.25 mol KOH in enough water to make 8.0 L of solution?. If an element has 18 protons and 20 neutrons and 18 electrons, which expression correctly identifies the element? If you expanded an atom to the size of a baseball, what would it look like? 121) Using the following generic atom description, choose the correct method for determining the number of neutrons. The exponent makes large numbers with a lengthy series of zeros or small numbers with many decimal places much more manageable. Consider these atoms: (a) copper, Cu; (b) neon, Ne; (c) hydrogen, H. The isotope 14-nitrogen has a mass of 14.003 amu , and the isotope nitrogen-15 has a mass of 15.000 amu . Researchers sometimes measure atoms in ansgtoms, a unit that equals 10 nanometers. cubes fit along each edge of the cell cube (40 m = 4 x 10, C atoms along each edge of a cube, there are (10, The second way takes the volume of the cell cube and divides it by the volume of either a cube 4A, Dividing by the volume of a cubical atom gives the same answer as, The volume of a spherical atom is 4/3*pi*2A, almost twice as large, but that in reality it would be impossible to pack C atoms together to take, A third way, more realistic, but the math is harder (and not described here) would take advantage. B) The neutron lacks an electrical charge. Protons are positively charged, electrons are negatively charged, and neutrons have no charge. Which of the following physical properties would you expect for krypton (Kr)? Size of an atom: Order of magnitude, about 0.1 nanometers, or 1x10^-10 meters A human is, order of magnitude wise, 1 meter in size. Choose the most likely set of mass numbers for these two bromine isotopes. The order of magnitude is -9, so the diameter of the atom is nine orders of magnitude smaller than the battery. So now this is new radius off you call this off, hydrogen atom. If the atom were the size of a baseball stadium, the nucleus would be smaller than the baseball. Which of the following elements are in the same group as silicon (Si)? Their outermost occupied shells are filled to capacity. If a proton were added to each germanium nucleus, however, you would not want to swallow the capsule because the germanium would. D) Two of the above are reasonable answers. So how might a gallium, Ga (number 31), chip compare with a germanium chip? A cat strolls across your backyard. 76) If two protons and two neutrons are removed from the nucleus of an oxygen atom, a nucleus of which element remains? The cookie is used to store the user consent for the cookies in the category "Analytics". What happens to the properties of elements across any period of the periodic table? C. The shell model is simpler and easy to understand. 24) What was Niels Bohr's explanation for the observation of atomic spectra? Why isn't dirt listed in the periodic table? D. The atomic masses are average atomic masses. Which of the following elements is an alkali metal? Acceleration of this kind causes the liquid sur- An electron de-excites from the fourth quantum level to the third and then directly to the first. In this case, volume off nucleus that is equal to four punchy by and radius of Nicolas is equal to duty is off this one to the poverty upon while you off their term it will be called to four upon three times by times Here, New radius is Ah and our So the power three Let this is named this equation. 117) According to the shell model, which electrons play the most significant role in determining the properties of an atom? Choose a specific health care profession (e.g., dental hygienist, physical therapist) and create a situation where this individual might be subject to legal action for each of the following torts: malpractice, negligence, assault, battery, invasion of privacy, false imprisonment, abuse, and defamation. If the atom was the size of a Baseball stadium, the nucleus Unendingly hell Neuter this off, Adam. Do the other three. What are 2 negative effects of using oil on the environment? would the nucleus be? Show that the liquid surface slopes at an angle $\theta$ with the hor- Suppose you compare an atom that has a diameter of 0.1 nm with a size AAA battery that has a diameter of 1 cm. A) physical; conceptual; physical; conceptual. flea. This cookie is set by GDPR Cookie Consent plugin. These cookies ensure basic functionalities and security features of the website, anonymously. Which of these properties describes a metal? A) physical model: gold coin, car engine, virus; conceptual model: air pollution, spread of sexually transmitted disease; dollar bill, which could represent wealth, may well be described. If the atom was the size of a Baseball stadium, the nucleus Embrace security in tow. electrons distance would depend on the identity of the atom. The diameter of the dime is eight orders of magnitude greater than the aluminum atom. 43) How can a hydrogen atom, which has only one electron, have so many spectral lines? All Rights Reserved. D) A broad spectrum of all colors would be observed. How big would the nucleus be if an atom was the size of the earth. 73) How might the spectrum of an atom appear if its electrons were not restricted to particular energy levels? 134) Light is emitted as an electron transitions from a higher energy state to a lower energy state. a ping-pong ball. How might health-care professionals provide the basic requirements of life to an unconscious patient? Given the information that 92.58 percent of all lithium atoms found in nature are lithium-7 and 7.42 percent are lithium-6, calculate the atomic mass of lithium, Li (atomic number 3). Answer: The combined energies of the two frequencies emitted by the one electrons is. A grain of sand So this is radius off nucleus. C) The electrons on the atoms repel other electrons on other atoms when they get close. taken up by the electron cloud which surrounds the nucleus. What does the following element description actually mean? 12) Which of the following statements does not describe a proton? Which behavior more accurately describes the true nature of electromagnetic radiation? What is the approximate mass of a carbon atom in atomic mass units (amu)? questions to science@newshour.org with Science Question in the subject line. 95) Which of the following diagrams best represents the size of the atomic nucleus relative to the size of the atom? Referring to Problem $1,$ suppose the nucleus of the hydrogen atom were enlarged to the size of a baseball (diameter $=7.3 \mathrm{cm} ) .$ At what typical distance from the center of the baseball would you expect to find the electron? If a neutral element has the following chemical symbol, how many electrons does it have? 70) Which element has the atomic number 9? Strontium, Sr (number 38), is especially dangerous to humans because it tends to accumulate in calcium-dependent bone marrow tissues (calcium, Ca, number 20). 130) According to the shell model, how many shells are required to describe the periodic table? Give a possible explanation. So we have answer equal to cheap watch and 69 times tended the power. Abadan! When comparing atoms to larger objects -- with a large disparity in size -- orders of magnitude show how to quantify the size differences. In which of these two scenarios does the electromagnetic radiation behave as a wave? 8 What would an atom look like if it was a marble? The mass number of an element is ________. A. physical; conceptual; physical; conceptual. What makes up most of the volume of an atom? When converted to meters and expressed in scientific notation, you can easily compare the measurements. Yes, off. D. Two of the above are reasonable answers. Ah, baseball. Which of the following elements will most likely be shiny and flexible? Baseball, which is a girl toe three pie and 65 times 10 to the power minus two meter. What does a heat capacity of infinity for a fluid in a heat exchanger mean. This textbook answer is only visible when subscribed! 101) The ________ represents the complete range of frequencies of light energy from radio waves to cosmic rays. 82) The isotope lithium-7 has a mass of 7.0160 atomic mass units, and the isotope lithium-6 has a mass of 6.0151 atomic mass units. 125) Since atoms are mostly empty space, why don t objects pass through one another? 100) Which of the following might best explain the reason why electrons are restricted to certain energy levels in an atom? - Brainly.com lovensonx2946 01/20/2022 Chemistry High School answered If an atom were the size of a baseball, its nucleus would be about the size of a (n) walnut. B) Yes, two otherwise separate lines would converge into a single more intense line. How is this analogous to the quantized energy levels of an electron in an atom? So this is a radius after, I don't know when size up the nucleus is in lust. ascending order from smallest to largest, they would be the We also use third-party cookies that help us analyze and understand how you use this website. why atoms are actually mostly empty space. Oxygen, O, (number 8), sulfur, S, (number 16), and selenium, Se, (number 34) have such similar chemical properties because. Does breathing cause you to lose or gain weight? There are several ways of solving this problem that give somewhat different answers, any is OK. Rather, its an area of probability, in which the size of the atom is defined by the probability that an electron will be found at a certain distance from its nucleus. If you remove two protons and two electrons from a sulfur atom (S), what new element is formed? Please subscribe to view the answer. How does the size of the nucleus compared to the size of the atom? If the atom were to increase in size to the size of a basket ball the neutrons,protons ,and electrons would also grow in size. Some older cars vibrate loudly when driving at particular speeds. To find the difference in the orders of magnitude, subtract the exponent -10 from the exponent -1. It was the first quantum theory of the atomic structure, applying the principles of quantum mechanics to the hydrogen atom. C) A gallium chip would be even faster because the gallium is more metallic. Is the head of a politician really made of 99.99999999% empty space? 61) When a rainbow of colors of light are combined into a single ray it forms, 62) If an atom were the size of a baseball, its nucleus would be about the size of a(n). Course Hero is not sponsored or endorsed by any college or university. An atom is a typical atom is one tenth of a billionth of a meter (1.0 10-10 meters) A basketballs' diameter is 9.5 inches Show full text C. Neutrons carry no electric charge and thus have a greater likelihood of passing through the tissue. Scientific notations help you to express these measurements and assign a value to the differences. To carry this further, there are 1,000,000 nanometers in a millimeter and 10,000,000 nanometers in a centimeter. The size of the hydrogen atom is about 23,000 times greater than the size of its nucleus. So we have radius our baseball equal to seven pointy centimeter upon to which is equal to 3.6 centimeter are we can ride. Which has more atoms: a 1-gram sample of carbon-12 or a 1-gram sample of carbon-13? Referring to Problem $1,$ suppose the nucleus of the hydrogen atom were enlarged to the size of a baseball (diameter $=7.3 \mathrm{cm} ) .$ At what typical distance from the center of the baseball would you expect to find the electron? depth below the surface? How long does it take for the actual transition to take place? 49) What does the following element description actually mean?238, D) a uranium atom with 92 protons and 146 neutrons. D) Yes. Thermal transport simulations were performed to investigate the important factors affecting the thermal conductivity based on the structure of semi-crystalline polyetheretherketone (PEEK), and the addition of boron nitride (BN) sheets. Hi. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. You could swallow a capsule of germanium, Ge (atomic number 32), without significant ill effects. E. An electron is dropping from a higher to a lower energy level with the difference in energy between the two being emitted as light. Analytical cookies are used to understand how visitors interact with the website. How might you distinguish a sodium-vapor street lamp from a mercury-vapor street lamp? The element bromine, Br (atomic number 35), has two major isotopes of similar abundance, both around 50 percent. Appendix $E$ describes a useful study aid known as concept mapping. Helium, He, is a nonmetallic gas and the second element in the periodic table. Jenny Marder is a senior science writer for NASA and a freelance journalist. Two frequencies of light are emitted. 107) The shell model presented in this book is not very accurate. If the atom were the size of a baseball stadium, the nucleus would be smaller than the baseball. The atomic mass of bromine is reported in the periodic table as 79.904 amu. Boron has primarily two isotopes, one with an atomic mass of 11 amu and another with an atomic mass of 10 amu. A tennis ball has a radius of about 1.25", so it would sit In other instances electromagnetic radiation behaves more like a particle. 97) An atom absorbs or emits only particular frequencies of light. Which of the following statements does not describe a proton? 39) Which element has the atomic number 12? are found around the nucleus. 16) Which of the following elements is a halogen? These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. nucleus. Which color of light comes from a greater energy transition: red or blue? 60) Which of the following elements are in the same period as magnesium (Mg)? Using aluminum as a specific example, an aluminum atom has a diameter of about 0.18 nm compared with a dime that has a diameter of about 18 mm. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. Necessary cookies are absolutely essential for the website to function properly. D) A quantum of light is actually one photon. Surrounding the nucleus is a cloud of electrons, which makes up most of the atoms volume. 112) How would you describe light generated by heating pure elements if it was observed through a prism or spectroscope? What is located outside the nucleus in the electron cloud? 27) Which of the following is not a nonmetal? D) all of the above(It is a particle,It is a wave,Its energy comes in packets of uniform size.). Using common objects that people are familiar with is better than using abstract landmarks that are difficult to imagine. Radius of carbon atom = 70 pm (or picometre) = 7 10^-11 m In which of these two scenarios does the electromagnetic radiation behave as a wave? D) They are of the same age, which is appreciably older than the solar system. 52) Which of the following elements will most likely be shiny and malleable? In other words, one billion atoms could line up across the diameter of the battery. The electrons Picture a circular pond with a diameter equal to the length of an Olympic swimming pool, which is about 165 feet (50 meters). What property of an electron makes it possible to use electron microscopes? ( the history of the element,the name of the element,the number of electrons in an atom of an element.). A. Then it goes into a different realm.. This cookie is set by GDPR Cookie Consent plugin. The Bohr model of the atom had a significant influence on the development of quantum mechanics, and was instrumental in the development and validation of quantum mechanics. where is the number for OH in the periodic table? If a fluorine atom were to attract an extra electron from lithium, the lithium atom would become ______________ charged.Answer: positively, Largest to smallest:- molecule, atom, proton, electron. It has a positive charge equivalent but opposite of an electron's. A. Electromagnetic radiation behaves both as a wave or as a particle depending on the circumstance. Try it in the Numerade app? Yale University: The Size of Matte: Why Properties Change in the Nanoscale, National Nanotechnology Initiative: Size of the Nanoscale, Micrometer = 1/1,000,000 m = 0.000001 m = 10-6 m, Nanometer = 1/1,000,000,000 m = 0.000000001 m = 10-9 m, Angstrom = 1/10,000,000,000 m = 0.00000000001 m = 10-10 m. The props aren't necessary, but they help visualization. 19) How does the wave model of electrons orbiting the nucleus account for the fact that the electrons can have only discrete energy values? If 80.0 percent of the atoms have an atomic mass of 80.00 atomic mass units and the other 20.0 percent have an atomic mass of 82.00 atomic mass units, what is the atomic mass of the element? Which are older, the atoms in the body of an elderly person or those in the body of a baby? C) When an electron wave is confined, it is reinforced only at particular frequencies. The average diameter of an atom is 0.1 to 0.5 nanometers. In the nucleus of the atom, along with neutrons. A farmer has 19 sheep All but 7 die How many are left? How many electrons does this iron atom have? 80) Which of the following elements are in the same group as silicon (Si)? Solution: According to Rutherford atomic model, electrons revolve round the nucleus in circular orbits. B. Does it make sense to say that a textbook is about 99.9 percent empty space? E) none of the above(no to The electrons smoothly move from one orbit to the next,It is a physical mode,The energy difference between the orbits is continuous,The electrons actually orbit around the nucleus.). How do their combined energies compare to the energy of the single frequency that would be emitted by de-excitation from the fourth level directly to the first level? The atomic bombings of Hiroshima and Nagasaki were the detonation of two atomic bombs over the Japanese cities of Hiroshima and Nagasaki on 6 and 9 August 1945 by the United States. Off it down is equal to radius of Nicholas to the poverty upon radius of it. How many electrons does this iron atom have? These cookies track visitors across websites and collect information to provide customized ads. 118) Which of the following does not describe a neutron? How does the size of the nucleus compare to the size of the atom? Which likely has more mass, the air that we inhale or the same volume of air we exhale? A) It has a positive charge equivalent but opposite of an electron's. By analogy, the size of a marble of 1 cm can be compared to the But opting out of some of these cookies may affect your browsing experience. Since atoms are mostly empty space, why don't objects pass through one another? How about a carbon dioxide molecule? Protons and neutrons are located in an atom's nucleus and electrons are outside of the electron cloud. Although it is very small, the nucleus is massive compared to the rest of the atom. After measuring two objects of vastly different sizes with the same unit, express the measurements in scientific notation to make it easier to compare them by determining the order of magnitude between the two numbers. If you dont know what that is, then you can really ignore it. If an atom were the size of a baseball stadium its nucleus would be about the size of what? Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. B) The atomic masses are average atomic masses. E) a hydrogen with one neutron and one proton. These transitions would produce three spectral lines in a spectroscope. with nonbonded C atoms at the optimal distance apart, about, Assume the optimal van der Waals distance is 4A (nucleus to nucleus) for C atoms interacting with, The eukaryotic cell could be a spherical oocyte, but to make the math easier, consider the cell as a cube with a length. Functional cookies help to perform certain functionalities like sharing the content of the website on social media platforms, collect feedbacks, and other third-party features. Choose the most likely set of mass numbers for these two bromine isotopes. Study with other students and unlock Numerade solutions for free. passes first through polarizing f, The turd IS launched ata speed of 51 ms at an angle 0f 60 degrees above the , 10.0 cmF =?2710.0 N40.0 cmThe blue bar shown above connected, A given thick spherical shell has a volume charge distribution of p = A/r, w, One of the moons of Jupiter; named Io_ has an orbital radius of 4.22 X 108 m, For lead 82Pb208 (atomic mass 207.976630u) obtain (a) the mass defect in ato. Metro baseball is equal to 7.3 centimeter. How is a balanced chemical equation similar to a recipe? A. See all Class 12 Class 11 Class 10 Class 9 Class 8 Class 7 Class 6 500 Selected Problems In Physics for JEE Main & Advanced If a baseball were scaled up to the size of planet Earth, each of its atoms would be about the size of. Rather, it's an area of probability, in which the size of the atom is defined by the probability that an electron will be found at a certain distance from its nucleus. Why? Therefore, the distances between nucleus and electron also increases. B. B) An electron is dropping from a higher to a lower energy level with the difference in energy between the two being emitted as light. However, you may visit "Cookie Settings" to provide a controlled consent. As the elevator moves downward at a constant velocity, what is the direc, Question 40/1 pt 012 2 99 0 DetailsTarzan swings on a 65.7 m long vi, PainterA man of mass Mm 95 kg decides to paint his house To do this;he b, Unpolarized light with intensity 380 W /m? Computer chips manufactured from gallium, operate faster than chips manufactured from germanium. B) It orbits around the nucleus of an atom. Which of the following statements best describes an element? Surrounding the nucleus is a cloud of electrons, which makes up most of the atoms volume. Which of the following elements is in the fourth period? why did federalists only think that rich men could be a government representative? Light is emitted as an electron transitions from a higher energy state to a lower energy state. The atomic mass of bromine is reported in the periodic table as 79.904 amu. C. No. If an atom were the size of this pond, the nucleus would be the size of a pencil eraser1/5-inch diameter (about 5 millimeters)floating in the middle of the pond. C. very probable because of how incredibly small atoms are. The size range of atoms is 1 to 5 angstroms. The periodic table is a reference to be used, not memorized. The beam of neutrons, however, is less harmful. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". This website uses cookies to improve your experience while you navigate through the website. About how many elements do you have access to as a consumer of market goods. B) You would see a series of very sharp lines of emitted light. One billion honeybees have about the same mass as one blue whale. The nucleus contains nearly all of the cells DNA, surrounded by a network of fibrous intermediate filaments and enveloped in a double membrane called the nuclear envelope. Which is heavier: a water molecule, H2O, or a carbon dioxide molecule, CO2? heisenberg148369 table tennis ball Find Physics textbook solutions? Why? Biol 231 Summer 2018 Problem Set 1 key.pdf, Biol 231 Fall 2020 Problem Set 1 key PDF.pdf, III David Hume claimed that to be black was to be like a parrot who speaks a few, Intellectual Property Includes inventions trademarks patents industrial designs, pain and usually gives a history of a fall from a bicycle or a tree however the, HISTORY OF TOURISM & SCOPE AND SECTOR OF TOURISM.docx, The chain reaction that occurs when isomerization of a single pigment molecule, APBs responsibility towards its surroundings has helped shaped their social and, 15 To determine your ecological footprint all of the following calculations are, build arguments to prepare for persuasive speeches on topics of interest or, Anthony.Jordan-EX2019-ChallengeYourself-4-3 (1).xlsx, Source Created by learner In terms of International business even though it is, 3-3 Assignment Introduction to Pseudocode and Flowcharts.docx, Stuviacom The Marketplace to Buy and Sell your Study Material a Azithromycin.
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