Atomic Structure Review

Front

What is the charge of an electron?

Back

Negative

Front

For an atom to be neutral (no charge), it must have an equal number of _____ and ______.

Back

protons and electrons

Front

The first ring or shell of the electron cloud can hold a total of how many electrons?

Back

2

Front

An atom's atomic number comes from its number of ________.

Back

protons

Front

What is the charge of a neutron?

Back

Neutral

Front

What are protons?

Back

Positively charged particles found in the nucleus of an atom.

Front

What is the nucleus of an atom?

Back

The central part of an atom that contains protons and neutrons.

Front

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

Back

An electron has a much smaller mass than a proton.

Front

What is an isotope?

Back

Atoms of the same element that have different numbers of neutrons.

Front

What is the role of neutrons in an atom?

Back

Neutrons help stabilize the nucleus and do not have a charge.