Atomic Structure Review

Front

Subatomic particles with a negative charge

Back

Electrons

Front

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

Back

Subtract the atomic number from the atomic mass.

Front

If an atom has 3 electrons, how many protons does it have?

Back

3

Front

What is the atomic mass of barium?

Back

137

Front

Subatomic particles with a positive charge

Back

Protons

Front

What is the charge of neutrons?

Back

Neutrons have no charge (neutral).

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the relationship between protons and electrons in a neutral atom?

Back

In a neutral atom, the number of protons equals the number of electrons.

Front

What is the mass of a proton compared to an electron?

Back

A proton is approximately 1836 times more massive than an electron.

Front

What is an isotope?

Back

Isotopes are atoms of the same element with different numbers of neutrons.