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Chemistry review 
                  Name:_____________________________Period_
Horizontales
Mass divided by volume.
Left to right
Negatively charged particle
Has no charge
The smallest form of matter.
A mixture in which the composition is not uniform throughout.
The simplest form of matter that has unique properties.
Total number of protons and neutrons,
The number of neutrons in iodine.
Contains protons and neutrons
Top to bottom
Verticales
The electrons on the outermost energy level of an atom furthest from the nucleus.
The amount of neutrons in strontium
Positively charged particle of the atom
How_many_neutron_are_in_an_isotope_of_chlorine_with_a_mass_of_thirty_seven_chlorine-37
The number representing the number of protons and electrons.
A mixture in which the composition is uniform throughout.
A substance that contains 2 or more elements chemically combined.
An element with twenty nine electrons
Atoms of an element with the same number of protons but different number of neutrons.
An element with 16 protons