Ch. 4 The Structure of the Atom

Ch. 4 The Structure of the Atom

Presentation

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Chemistry

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9th - 12th Grade

•

Practice Problem

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Easy

Created by

Mindy Creel

Used 12+ times

FREE Resource

57 Slides • 12 Questions

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Multiple Choice

What did Democritus believe to be true about the atom?

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Democritus believed that atoms are indivisible particles that make up all matter.

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Democritus claimed that atoms are made of smaller particles.

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Democritus thought atoms could be created and destroyed.

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Democritus believed that atoms are large and visible particles.

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Multiple Choice

What were Dalton's beliefs regarding the atom?

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Dalton thought all atoms are identical in mass and properties.

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Dalton claimed that atoms can combine in fractional ratios.

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Dalton believed that atoms are indivisible, unique to each element, and combine in whole-number ratios.

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Dalton believed that atoms can be created and destroyed.

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Multiple Choice

What experiment was used to discover the electron?

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Photoelectric effect experiment by Albert Einstein

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Cathode ray experiment by J.J. Thomson

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Oil drop experiment by Robert Millikan

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Gold foil experiment by Ernest Rutherford

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Multiple Choice

What experiment was used to discover the nucleus?

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Thomson's cathode ray experiment

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Millikan's oil drop experiment

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Bohr's atomic model experiment

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Rutherford's gold foil experiment

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Multiple Choice

Who discovered protons and neutrons?

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Niels Bohr discovered protons; Albert Einstein discovered neutrons.

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Ernest Rutherford discovered protons; James Chadwick discovered neutrons.

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Marie Curie discovered protons; Max Planck discovered neutrons.

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Isaac Newton discovered protons; Richard Feynman discovered neutrons.

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Multiple Choice

What does the atomic number tell us?

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The atomic number shows the chemical reactivity of an element.

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The atomic number represents the number of electrons in an atom.

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The atomic number tells us the number of protons in an atom.

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The atomic number indicates the mass of an atom.

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Multiple Choice

What is the mass number equal to?

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The number of electrons in an atom.

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The total number of particles in an atom.

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The average weight of an atom.

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The sum of protons and neutrons in an atom's nucleus.

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Multiple Choice

What are isotopes?

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Isotopes are elements with different numbers of protons and neutrons.

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Isotopes are the same as ions but with different charges.

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Isotopes are elements that have the same atomic mass but different chemical properties.

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Isotopes are variants of elements with the same number of protons but different numbers of neutrons.

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Multiple Choice

How do mass number and atomic mass differ?

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Mass number includes electrons; atomic mass does not.

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Mass number is the average of all isotopes; atomic mass is the total of protons.

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Mass number is always a decimal; atomic mass is a whole number.

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Mass number is a whole number representing protons plus neutrons; atomic mass is a decimal reflecting the weighted average mass of isotopes.

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Multiple Choice

What is alpha radiation?

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Alpha radiation is a type of non-ionizing radiation.

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Alpha radiation consists of beta particles, which are electrons.

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Alpha radiation is a type of ionizing radiation consisting of alpha particles, which are like helium nuclei.

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Alpha radiation is a form of electromagnetic radiation like X-rays.

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Multiple Choice

What is beta radiation?

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Beta radiation is a form of electromagnetic radiation like X-rays.

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Beta radiation is a type of radiation that consists of alpha particles.

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Beta radiation is a type of radiation like electrons emitted during beta decay.

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Beta radiation is a type of radiation emitted during nuclear fusion.

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Multiple Choice

What is gamma radiation?

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Gamma radiation is a type of particle radiation.

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Gamma radiation is low-energy sound waves.

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Gamma radiation is a form of chemical energy.

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Gamma radiation is high-energy electromagnetic radiation emitted during radioactive decay.

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