NC EOG Physical Science 2023 Review

Front

All matter is made up of tiny _______________

Back

particles (atoms and molecules)

Front

What is the atomic mass of Neon?

Back

20.18

Front

How many neutrons does lithium have?

Back

4

Front

A neutral atom of the element sodium has ____ electrons.

Back

11

Front

Chocolate milk is _______________

Back

Mixture

Front

What is an atom?

Back

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

Front

What is a molecule?

Back

A group of two or more atoms bonded together.

Front

Define an element.

Back

A pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is a compound?

Back

A substance formed when two or more elements are chemically bonded together.

Front

What is the atomic number?

Back

The number of protons in the nucleus of an atom.