Atoms and Elements

Front

What is the atomic mass of oxygen?

Back

15.99

Front

What part of the atom is the nucleus?

Back

The inner part of the atom.

Front

Where is the electron cloud located in an atom?

Back

On the outside of the atom.

Front

How many protons are in an oxygen atom?

Back

8

Front

What are atoms made up of?

Back

Protons, Neutrons, and Electrons.

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of a neutron?

Back

Neutral.

Front

What is the charge of an electron?

Back

Negative.

Front

What is the role of electrons in an atom?

Back

Electrons are involved in chemical bonding and reactions.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.