Unit 1 Final Review

Front

What is the atomic number of Sodium?

Back

11

Front

What is the atomic mass of an element?

Back

The weighted average of the masses of all of its naturally occurring isotopes.

Front

What are isotopes?

Back

Atoms that have the same number of protons but a different number of neutrons.

Front

What is the mass number of an atom?

Back

The total number of protons and neutrons in the nucleus.

Front

What subatomic particle has no charge?

Back

Neutron.

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of an electron?

Back

Negative.

Front

How do you determine the number of neutrons in an atom?

Back

Subtract the atomic number from the mass number.

Front

What is the relationship between protons and atomic number?

Back

The atomic number is equal to the number of protons in an atom.

Front

What is the significance of isotopes in chemistry?

Back

Isotopes can affect the stability and behavior of elements in chemical reactions.