Atomic Structure Review

Front

What is an electron?

Back

An electron is a subatomic particle with a negative charge that orbits the nucleus of an atom.

Front

What are neutrons?

Back

Neutrons are subatomic particles found in the nucleus of an atom that have no charge (neutral).

Front

How many neutrons does platinum have?

Back

Platinum has 117 neutrons.

Front

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

Back

Number of Neutrons = Mass Number - Atomic Number (Use APEMAN: A=mass number, P=protons, E=electrons, M=neutrons).

Front

If an atom has 3 electrons, how many protons does it have?

Back

If an atom has 3 electrons, it has 3 protons, making it neutral.

Front

What is the atomic number?

Back

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

Front

What is the mass number?

Back

The mass number is the total number of protons and neutrons in an atom's nucleus.

Front

What are protons?

Back

Protons are positively charged subatomic particles found in the nucleus of an atom.

Front

What is the nucleus of an atom?

Back

The nucleus is the central part of an atom, containing protons and neutrons.

Front

What is the charge of a neutron?

Back

Neutrons have no charge; they are neutral.