Atomic Structure

Front

What is an isotope?

Back

Isotopes are variants of the same chemical element that have the same number of protons but different numbers of neutrons.

Front

What determines the mass number of an atom?

Back

The mass number of an atom is determined by the total number of protons and neutrons in its nucleus.

Front

What is a neutral atom?

Back

A neutral atom is an atom that has an equal number of protons and electrons, resulting in no overall charge.

Front

What charge do protons carry?

Back

Protons carry a positive charge.

Front

What charge do neutrons carry?

Back

Neutrons carry no charge; they are neutral.

Front

What charge do electrons carry?

Back

Electrons carry a negative charge.

Front

How do you calculate the mass number of an element?

Back

Mass number = Number of protons + Number of neutrons.

Front

What is the significance of the atomic number?

Back

The atomic number is the number of protons in the nucleus of an atom and determines the element's identity.

Front

What are the three main subatomic particles?

Back

The three main subatomic particles are protons, neutrons, and electrons.

Front

What is the difference between an ion and a neutral atom?

Back

An ion is an atom that has gained or lost electrons, resulting in a charge, while a neutral atom has no charge.