Atomic Structure

Front

What is the atomic mass of an atom determined by?

Back

The atomic mass is the number of protons plus neutrons.

Front

Which subatomic particle has almost no mass?

Back

Electrons.

Front

What determines the identity of an element?

Back

The number of protons in an atom.

Front

When is an atom considered neutral?

Back

An atom is said to be neutral if it has the same number of electrons and protons.

Front

Where are electrons located in an atom?

Back

Electrons are found outside the nucleus and have a negative charge.

Front

What are protons and neutrons collectively known as?

Back

Nucleons.

Front

What charge do protons carry?

Back

Protons carry a positive charge.

Front

What is the charge of neutrons?

Back

Neutrons have no charge (they are neutral).

Front

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

Back

Number of neutrons = Atomic mass - Number of protons.

Front

What is the role of electrons in chemical bonding?

Back

Electrons in the outermost shell (valence electrons) are involved in chemical bonding.