HMH Module J Unit 1

These are horizontal rows on the periodic table

The amount of matter in an object

This is what holds atoms together

Positively charged particle in the atom

Two or more different atoms chemically bonded together

Water is a pure substance

A measure of the gravitational force on an object

This can only be seen in a chemical reaction

The smallest particle of matter

This particle of the atom does not have an electrical charge

A pure substance is made up of only one type of matter throughout

Anything that has mass and takes up space.

The amount of space an object takes up

Crystals are solids that formed by a regular repeating pattern of particles connected together

The smallest particle of a compound

Vertical columns on the periodic table

Ratio of mass to volume of an object

Deoxyribonucleic acid contains genetic material

The number of protons the atom has

Mass cannot change because of gravity

Can be seen without testing it

A substance that cannot be broken down into simpler substances

This is the center region of an atom that contains the protons and neutrons

This particle of the atom has a negative electrical charge

An arrangement of all the known elements