Flashcardizz Atoms Review

Front

What is the atomic number?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

What do chemists use letters of the alphabet for?

Back

Chemists use letters of the alphabet as symbols for the elements.

Front

True or False: Neutrons have a negative charge.

Back

False. Neutrons have no charge.

Front

What is each chemical element made up of?

Back

Each chemical element is made up of only one kind of atom.

Front

What causes objects to change to different states?

Back

Heat causes objects to change to different states.

Front

What is an atom?

Back

An atom is the smallest unit of a chemical element, consisting of protons, neutrons, and electrons.

Front

What are protons?

Back

Protons are positively charged particles found in the nucleus of an atom.

Front

What are neutrons?

Back

Neutrons are neutral particles found in the nucleus of an atom.

Front

What are electrons?

Back

Electrons are negatively charged particles that orbit the nucleus of an atom.

Front

What is a molecule?

Back

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