Atoms, Elements, Molecules, Compounds

Front

What is an atom?

Back

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

Front

What is an element?

Back

A pure substance made of only one type of atom.

Front

What is a molecule?

Back

Two or more atoms chemically bonded together.

Front

What is a compound?

Back

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

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.

Front

What are electrons?

Back

Negatively charged particles that orbit the nucleus of an atom.

Front

What is the periodic table?

Back

A table that organizes all known elements based on their atomic number and properties.

Front

How many periods are in the periodic table?

Back

7 periods.

Front

What is the nucleus of an atom?

Back

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