Atoms, Isotopes and Ions

Front

What is an isotope?

Back

An atom with different amounts of neutrons.

Front

Where are protons located in an atom?

Back

In the nucleus, or center of the atom.

Front

How many valence electrons does Boron have?

Back

3.

Front

How many valence electrons does Lithium have?

Back

1.

Front

What force holds protons together in the nucleus?

Back

Strong force.

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 the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the mass number of an atom?

Back

The total number of protons and neutrons in the nucleus.