Quick Check - Atom

Front

What is an electron?

Back

A particle that moves around the nucleus of an atom and has a negative charge.

Front

What is the atomic mass of Fluorine (F)?

Back

19

Front

What charge does nitrogen have as an ion?

Back

-3

Front

What is a valence electron?

Back

Electrons in the outer shell of an atom that are involved in chemical bonding.

Front

Why do atoms have no electric charge?

Back

Because they have an equal number of electrons and protons.

Front

What is a proton?

Back

A positively charged particle found in the nucleus of an atom.

Front

What is a neutron?

Back

A neutral particle found in the nucleus of an atom.

Front

What is the nucleus of an atom?

Back

The central part of an atom that contains protons and neutrons.

Front

What is an ion?

Back

An atom or molecule that has gained or lost one or more electrons, resulting in a net charge.

Front

What is the difference between an atom and a molecule?

Back

An atom is the smallest unit of an element, while a molecule is a group of two or more atoms bonded together.