Protons, Neutrons, & Electrons

Front

What charge does a neutron have?

Back

It has no charge (it is neutral).

Front

What charge does a proton have?

Back

Positive.

Front

What is the atomic number of iron?

Back

26.

Front

How many electrons does helium have?

Back

2.

Front

How many protons does krypton have?

Back

36.

Front

What are protons?

Back

Subatomic particles with a positive charge found in the nucleus of an atom.

Front

What are neutrons?

Back

Subatomic particles with no charge (neutral) found in the nucleus of an atom.

Front

What are electrons?

Back

Subatomic particles with a negative charge that orbit the nucleus of an atom.

Front

What is the relationship between protons and atomic number?

Back

The atomic number of an element is equal to the number of protons in its nucleus.

Front

How do you determine the number of neutrons in an atom?

Back

Subtract the atomic number from the atomic mass (rounded to the nearest whole number).