Protons, Electrons, Neutrons-1

Front

What is the atomic number of Manganese (Mn)?

Back

25

Front

How many protons does Carbon have?

Back

6

Front

What are valence electrons?

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming bonds.

Front

How many valence electrons does Iodine have?

Back

7

Front

What is the atomic mass of Gold (Au)?

Back

197

Front

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

Back

Number of neutrons = Atomic mass - Atomic number.

Front

What is the charge of a proton?

Back

A proton has a positive charge.

Front

What is the charge of an electron?

Back

An electron has a negative charge.

Front

What is the charge of a neutron?

Back

A neutron has no charge (neutral).

Front

What is the relationship between protons and electrons in a neutral atom?

Back

In a neutral atom, the number of protons equals the number of electrons.