Atoms and their parts

Front

What are the three main parts of an atom?

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

How many protons are in a hydrogen atom?

Back

1.

Front

What determines the atomic number of an element?

Back

The number of protons in the nucleus.

Front

What is the maximum number of electrons that can occupy the first energy level of an atom?

Back

2.

Front

What is the maximum number of electrons that can occupy the second energy level of an atom?

Back

8.

Front

What is a molecule?

Back

A group of two or more atoms bonded together.

Front

What is the difference between an atom and a molecule?

Back

An atom is the smallest unit of an element, while a molecule is a group of atoms bonded together.