Atoms

Front

Where is the element's atomic MASS located?

Back

At the bottom of the element's box in the periodic table.

Front

What are valence electrons?

Back

Electrons in the outside shell of the atom that determine its chemical properties.

Front

Which subatomic particles contribute the least to the mass of an atom?

Back

Electrons.

Front

Generally, the number of neutrons in an atom is equal to the number of protons.

Back

True.

Front

Which subatomic particle has a negative charge?

Back

Electron.

Front

What is an atom?

Back

The basic unit of a chemical element, consisting of protons, neutrons, and electrons.

Front

What are protons?

Back

Subatomic particles with a positive charge found in the nucleus of an atom.

Front

What are neutrons?

Back

Subatomic particles with no charge found in the nucleus of an atom.

Front

What is the atomic number?

Back

The number of protons in the nucleus of an atom, which determines the element.

Front

What is the mass number?

Back

The total number of protons and neutrons in an atom's nucleus.