Atomic Structure

Front

What determines the identity of an element?

Back

The number of protons in the nucleus.

Front

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

Back

Subtract the atomic number from the mass number.

Front

What is the mass number of an atom?

Back

The total number of protons and neutrons in the nucleus.

Front

Where is most of the mass of an atom located?

Back

In the nucleus.

Front

What are the three main subatomic particles?

Back

Protons, neutrons, and electrons.

Front

What charge do neutrons carry?

Back

Neutrons are neutral and carry no charge.

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

If an atom has 10 protons and 10 electrons, what is its charge?

Back

The atom is neutral.

Front

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

Back

They are equal in number.

Front

What is the significance of the mass number in atomic structure?

Back

It indicates the total number of protons and neutrons, which determines the atom's mass.