Chemistry Final

Front

What determines the chemical properties of an element?

Back

The number of electrons.

Front

What is the atomic number of an element?

Back

The number of protons in an atom.

Front

What is the mass number defined as?

Back

The number of protons and neutrons.

Front

Atoms of the same element must always have the same number of _________.

Back

Protons.

Front

Are all chemicals in the lab to be considered dangerous?

Back

True.

Front

What is an element?

Back

A substance that cannot be broken down into simpler substances by chemical means.

Front

What is a compound?

Back

A substance formed when two or more elements chemically bond together.

Front

What is the difference between an atom and a molecule?

Back

An atom is the smallest unit of an element, while a molecule is a group of two or more atoms bonded together.

Front

What is the periodic table?

Back

A tabular arrangement of elements organized by increasing atomic number.

Front

What is an isotope?

Back

Atoms of the same element that have different numbers of neutrons.