Front

For a neutral atom, the number of _______________ equals the number of ______________.

Back

protons; electrons

Front

Which of the following chemical formulas represents a compound? C3, O2, CH3CHO, H2

Back

CH3CHO

Front

When a solid reaches the temperatures of its ___, it can become a liquid.

Back

melting point

Front

Which two subatomic particles make up the atomic mass of an atom?

Back

Protons and Neutrons

Front

Molecules have the strongest intermolecular attraction in a...

Back

Solid

Front

What is the definition of an atom?

Back

The smallest unit of an element that retains the properties of that element.

Front

What are protons?

Back

Positively charged subatomic particles found in the nucleus of an atom.

Front

What are neutrons?

Back

Neutral subatomic particles found in the nucleus of an atom.

Front

What are electrons?

Back

Negatively charged subatomic particles that orbit the nucleus of an atom.

Front

What is a molecule?

Back

A group of two or more atoms bonded together.