Chemistry in Life Pre-Test

What are the three subatomic particles?

• proton

• neutron

• photon

• electron

Protons have a _______ charge.

• positive

• neutral

• negative

The subatomic particle that has a negative charge is called a

• photon

• neutron

• electron

• proton

The atomic number tells us the number of

• electrons

• neutrons

• protons

• atoms

The number of protons tell us what _________ an atom is.

• element

• charge

• size

• color

Where can we find the atomic mass of an element?

• top right corner

• at the bottom, it's a decimal

• it's the letters of the element

• a quick google search

___________ is a pure substance that consists entirely of one type of atom.

• A proton

• An element

• A mixture

• A compound

A chemical compound is a substance formed by the chemical combination of two or more ________.

• protons

• elements

• molecules

• atoms

Water is an example of a chemical compound.

• True

• False

A ________ is formed when one or more electrons are transferred from one atom to another.

• covalent

• ionic

• hydrogen