Staley 1st 9 wk final exam

Front

What is at the center of every atom?

Back

A nucleus

Front

How many neutrons are in an atom with an atomic number of 19 and a mass number of 29?

Back

10

Front

Which of the following is a halogen?

Back

Chlorine

Front

What is the element with the atomic number of 86?

Back

Radon

Front

What does an atomic number of 8 indicate about an oxygen atom?

Back

It has 8 protons.

Front

What is the smallest unit of an element?

Back

An atom

Front

What are the three main subatomic particles?

Back

Protons, neutrons, and electrons

Front

What charge do protons have?

Back

Positive charge

Front

What charge do electrons have?

Back

Negative charge

Front

What is the mass number of an atom?

Back

The total number of protons and neutrons in the nucleus