Periodic Table/Atoms 2024 test #4-review

Front

What are the two subatomic particles found in the nucleus of an atom?

Back

Protons and neutrons.

Front

What are valence electrons?

Back

Electrons located on the outer energy level.

Front

What are the three particles that make up an atom?

Back

Protons, neutrons, and electrons.

Front

What do the horizontal rows on the periodic table represent?

Back

The number of orbitals.

Front

What particle uniquely identifies an element?

Back

Number of protons.

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of a neutron?

Back

Neutral.

Front

What is the charge of an electron?

Back

Negative.

Front

What is an atomic number?

Back

The number of protons in the nucleus of an atom.

Front

What is an isotope?

Back

Atoms of the same element with different numbers of neutrons.