McGuire Flashcard 1 Atoms and Molecules

Front

What does the law of conservation of matter mean?

Back

Matter cannot be created nor destroyed.

Front

What is the smallest amount of an element called?

Back

Atom

Front

What are the beginning substances in a chemical reaction called?

Back

Reactants

Front

What do we call two atoms stuck together?

Back

A molecule

Front

What is a product in a chemical reaction?

Back

A substance that is formed as a result of a chemical reaction.

Front

What is an atom?

Back

The basic unit of a chemical element.

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

What are protons?

Back

Positively charged particles found in the nucleus of an atom.

Front

What are electrons?

Back

Negatively charged particles that orbit the nucleus of an atom.