atoms, elements, molecules, compounds

Front

What is the basic unit of matter?

Back

Atom

Front

What are atoms made up of?

Back

Protons, neutrons, and electrons.

Front

What is the charge of protons?

Back

Positive charge.

Front

What is the charge of neutrons?

Back

No charge.

Front

What is the charge of electrons?

Back

Negative charge.

Front

What is a molecule?

Back

A group of two or more atoms bonded together.

Front

What is a compound?

Back

A substance formed when two or more different elements are chemically bonded.

Front

Are all molecules compounds?

Back

No, not all molecules are compounds; for example, O2 is a molecule but not a compound.

Front

What is the smallest particle of an element that retains its properties?

Back

Atom.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms.