Atomic Structure

Front

What are atoms of the same element with a different number of neutrons called?

Back

Isotope

Front

What are the subatomic particles that are neutral in charge?

Back

Neutrons

Front

Atoms of the same element must always have the same number of what?

Back

Protons

Front

What is the term for the sum of the protons and neutrons in the nucleus of an atom?

Back

Mass number

Front

What is the tiny, dense, positively charged portion of the atom that holds most of the atomic mass?

Back

Nucleus

Front

What is the charge of protons?

Back

Positive

Front

What is the charge of electrons?

Back

Negative

Front

What is the overall charge of an atom if it has an equal number of protons and electrons?

Back

Neutral

Front

What is the term for the region surrounding the nucleus where electrons are likely to be found?

Back

Electron cloud

Front

What is the maximum number of electrons that can occupy the first energy level of an atom?

Back

2 electrons