Clicker Questions

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Chapter 11: The Atomic Nature of Matter

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Brownian motion has to do with the

a) size of atoms.b) vibrations of atoms.c) random motions of atoms and molecules.d) rhythmic movements of Brownians.

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Brownian motion has to do with the

a) size of atoms.b) vibrations of atoms.c) random motions of atoms and molecules.d) rhythmic movements of Brownians.

Comment: It was Einstein's investigation of Brownian motion that in 1922 won him the Nobel Prize in Physics.

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It is correct to say that atoms that make up your body

a) were formed in ancient stars.b) were previously a part of your neighbor's bodies.c) are in motion at all times.d) All of these.

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It is correct to say that atoms that make up your body

a) were formed in ancient stars.b) were previously a part of your neighbor's bodies.c) are in motion at all times.d) All of these.

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Compared with the wavelength of visible light, atoms are

a) about the same size.b) smaller.c) larger.d) fuzzier.

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Compared with the wavelength of visible light, atoms are

a) about the same size.b) smaller.c) larger.d) fuzzier.

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Which of the following has the smallest mass?

a) Protonb) Neutronc) Electrond) Except for slight differences, all have about the

same mass.

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Which of the following has the smallest mass?

a) Protonb) Neutronc) Electrond) Except for slight differences, all have about the

same mass.

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The reason you don't fall between the atoms in the floor you stand on involves

a) the small spaces between atoms.b) electrical forces.c) the rigidity of solids.d) pressure.

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The reason you don't fall between the atoms in the floor you stand on involves

a) the small spaces between atoms.b) electrical forces.c) the rigidity of solids.d) pressure.

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An element is a substance consisting of

a) atoms of the same kind.b) atoms or molecules of the same kind.c) only protons.d) protons and electrons in balance.

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An element is a substance consisting of

a) atoms of the same kind.b) atoms or molecules of the same kind.c) only protons.d) protons and electrons in balance.

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The classic periodic table

a) has four legs.b) lists the known elements.c) is now outmoded and has been replaced by

modeling programs.d) None of the above.

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The classic periodic table

a) has four legs.b) lists the known elements.c) is now outmoded and has been replaced by

modeling programs.d) None of the above.

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Investigation of atoms sequenced along each horizontal row (period) of the periodic table shows that atoms decrease in

a) mass.b) size.c) atomic weight.d) None of the above.

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Investigation of atoms sequenced along each horizontal row (period) of the periodic table shows that atoms decrease in

a) mass.b) size.c) atomic weight.d) None of the above.

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If you add or subtract a proton to or from the nucleus of an atom, you produce

a) a completely different atom.b) an isotope of the same atom.c) an ion.d) None of the above.

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If you add or subtract a proton to or from the nucleus of an atom, you produce

a) a completely different atom.b) an isotope of the same atom.c) an ion.d) None of the above.

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The atomic number of an atom is defined in terms of its number of

a) protons.b) neutrons.c) protons and neutrons.d) protons, neutrons, and electrons.

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The atomic number of an atom is defined in terms of its number of

a) protons.b) neutrons.c) protons and neutrons.d) protons, neutrons, and electrons.

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The size of an atom is mostly determined by the space occupied by its

a) nucleus.b) electrons.c) protons.d) neutrons.

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The size of an atom is mostly determined by the space occupied by its

a) nucleus.b) electrons.c) protons.d) neutrons.

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Which of these elements has atoms of the greatest mass?

a) Heliumb) Carbonc) Goldd) Uranium

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Which of these elements has atoms of the greatest mass?

a) Heliumb) Carbonc) Goldd) Uranium

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Which of these elements has atoms with the greatest number of electrons?

a) Heliumb) Carbonc) Goldd) Uranium

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Which of these elements has atoms with the greatest number of electrons?

a) Heliumb) Carbonc) Goldd) Uranium

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Molecules are composed of

a) atoms.b) electrons and protons.c) atomic nuclei and orbiting electrons.d) particles larger than atoms.

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Molecules are composed of

a) atoms.b) electrons and protons.c) atomic nuclei and orbiting electrons.d) particles larger than atoms.

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Atoms combine to form molecules by way of

a) nuclear forces.b) electric repulsion.c) shared or exchanged electrons.d) neutron attractions.

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Atoms combine to form molecules by way of

a) nuclear forces.b) electric repulsion.c) shared or exchanged electrons.d) neutron attractions.

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A compound is composed of different kinds of atoms

a) mixed together.b) moving at the same average speed.c) in definite proportions.d) in the gaseous form.

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A compound is composed of different kinds of atoms

a) mixed together.b) moving at the same average speed.c) in definite proportions.d) in the gaseous form.

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The atoms in isotopes of a particular element have different numbers of

a) electrons.b) protons.c) neutrons.d) electric charges.

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The atoms in isotopes of a particular element have different numbers of

a) electrons.b) protons.c) neutrons.d) electric charges.

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Isotopes of a given element differ in

a) atomic number.b) mass number.c) electron number.d) their place in the periodic table.

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Isotopes of a given element differ in

a) atomic number.b) mass number.c) electron number.d) their place in the periodic table.

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The shell model of the atom views electrons as occupying

a) shells.b) three-dimensional orbitals.c) circular or elliptical orbits.d) standing waves.

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The shell model of the atom views electrons as occupying

a) shells.b) three-dimensional orbitals.c) circular or elliptical orbits.d) standing waves.

Explanation: Straight-forward enough? Are you acquainted with friends who feel a straight answer can't be the one to pick—that there's always a trick? Ask with a straight face, "What really is 1 + 1." Is there a long pause in answering?

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If 1.0 gram of antimatter meets with 4.0 grams of matter, the energy released would correspond to the energy equivalent of

a) 1 gram.b) 2 grams.c) 4 grams.d) much more than 4 grams.

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If 1.0 gram of antimatter meets with 4.0 grams of matter, the energy released would correspond to the energy equivalent of

a) 1 gram.b) 2 grams.c) 4 grams.d) much more than 4 grams.