Atoms, Elements, Molecules, & Compounds

Front

What is a proton?

Back

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

Front

What is an electron cloud?

Back

The electron cloud is the region around the nucleus of an atom where electrons are likely to be found.

Front

What is a nucleus?

Back

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

Front

What is an atom?

Back

An atom is the smallest unit of matter that retains the properties of an element.

Front

What is an element?

Back

An element is a pure substance made of only one type of atom.

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together.

Front

What is a neutron?

Back

A neutron is a neutral particle found in the nucleus of an atom.

Front

How do protons and electrons compare in charge?

Back

Protons have a positive charge, while electrons have a negative charge.

Front

What determines the identity of an element?

Back

The number of protons in the nucleus of an atom determines the identity of an element.

Front

What is the atomic number?

Back

The atomic number is the number of protons in the nucleus of an atom, which defines the element.