Atoms & Molecules

Front

What is an element?

Back

A substance made up of atoms with the same number of protons, joined together by chemical bonds.

Front

What is a compound?

Back

A substance made up of atoms of two or more different elements joined together by chemical bonds.

Front

What is a molecule?

Back

The smallest particle in a compound that has the chemical properties of that compound.

Front

How many atoms of Strontium (Sr) are in the compound SrSO4?

Back

1

Front

What is the atomic mass of Sodium (Na)?

Back

22.990

Front

What is an atom?

Back

The smallest unit of an element, consisting of protons, neutrons, and electrons.

Front

What is the nucleus of an atom?

Back

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

Front

What is the difference between an atom and a molecule?

Back

An atom is a single unit of an element, while a molecule is made up of two or more atoms bonded together.

Front

What are protons?

Back

Positively charged particles found in the nucleus of an atom.

Front

What are neutrons?

Back

Neutral particles found in the nucleus of an atom, with no charge.