Test Review Atomic Structure 2024

Front

What is the ground state of an atom?

Back

The ground state is the lowest energy state of an atom, where electrons are in their closest orbitals to the nucleus.

Front

What is the nucleus of an atom?

Back

The nucleus is the central part of an atom, containing protons and neutrons, and is where most of the atom's mass is concentrated.

Front

What are the three main subatomic particles?

Back

Protons, neutrons, and electrons.

Front

What charge do protons carry?

Back

Protons carry a positive charge.

Front

What charge do electrons carry?

Back

Electrons carry a negative charge.

Front

What charge do neutrons carry?

Back

Neutrons carry no charge (they are neutral).

Front

What is the mass of a proton?

Back

A proton has a mass of approximately 1 atomic mass unit (amu).

Front

What is the mass of a neutron?

Back

A neutron has a mass of approximately 1 atomic mass unit (amu).

Front

What is the mass of an electron?

Back

An electron has a very small mass, approximately 1/1836 of a proton.

Front

How do you determine the atomic number of an element?

Back

The atomic number is determined by the number of protons in the nucleus of an atom.