Chapter 16 Properties of Atoms and the Periodic Table

Each energy level of an atom has a maximum number of _____ it can hold.

• neutrons

• electrons

• quarks

• protons

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Dot diagrams are used to represent

• atomic number.

• the structure of the nucleus.

• outer electrons.

• isotopes.

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Particles of matter that make up protons and neutrons are

• quarks.

• isotopes.

• electrons.

• atoms.

A chemical symbol represents the

• structure of an element.

• type of an element.

• name of an element.

• reaction of an element.

Horizontal rows of the periodic table are called

• clusters.

• families.

• periods.

• groups.

Atoms of the same element with different numbers of neutrons are called

• isotopes.

• metalloids.

• transition elements.

• radioactive.

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A particle that moves around the nucleus is a(n)

• ion.

• electron.

• proton.

• neutron.

• isotope.

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Elements in groups 3 through 12 are called

• noble gases.

• transition elements.

• isotopes.

• alkali metals.

• metalloids.

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To accelerate protons in the study of subatomic particles, the

• a television is used.

• the Quark is used.

• the Tevatron is used.

• a temanite is used.

• the Pentagon is used.

A certain atom has 9 protons, 9 electrons, and 10 neutrons. What is its mass number?

• 9

• 10

• 18

• 19

• 28

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