Chemistry Quiz 0922

anions are _____ ions.

• positive
• negative
• neutral

If an element gains 1 electron, what charge will it have?

• +1
• -1
• +7
• -7

Why are ions charged particles?

• The number of electrons does not equal the number of protons.
• The number of protons does not equal the number of neutrons.
• The number of neutrons does not equal the number of electrons.
• The electric charges of the electrons and protons cancel each other out.

Cations are...

• Positive
• Negative
• Neutral
• Purring

An atom has a mass number of 45 and an atomic number of 21 what is it's neutron number

• 21

• 24

• 45

• 66

• 24

The smallest basic unit of matter is a(n)

• element

• atom

• molecule

• speck

A substance made of only one type of atom that cannot be broken down by chemical means

• compound

• element

• electron

• molecule

A subatomic particle that has a positive charge and that is found in the nucleus of an atom

• proton

• neutron

• electron

• valence

A subatomic particle that has no charge and that is found in the nucleus of an atom

• electron

• neutron

• shell

• proton

A subatomic particle that has a negative charge and is found in the electron cloud orbiting the nucleus

• proton

• neutron

• electron

• atom