Atomic Structure and Chemical Reactions

Front

What is the basic unit of matter?

Back

The atom.

Front

What is the charge of protons?

Back

Positive.

Front

What is the charge of electrons?

Back

Negative.

Front

What is the charge of neutrons?

Back

Neutral.

Front

What is the nucleus of an atom made of?

Back

Protons and neutrons.

Front

What is the term for the number of protons in an atom?

Back

Atomic number.

Front

What is the term for the total number of protons and neutrons in an atom?

Back

Mass number.

Front

What do subscripts in a chemical formula indicate?

Back

The number of atoms of an element in a molecule.

Front

What is a chemical reaction?

Back

A process that involves the rearrangement of the molecular or ionic structure of a substance.

Front

What is the law of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.