neutron charge
neutral
Proton charge
positive (+1)
electron charge
negative (1)
Atomic number
the number of protons in the nucleus of an atom
Mass of an atom
protons + neutrons
atomic number
protons and electrons
No two different elements will have the ________ atomic number?
same
atomic weight
Average of the mass numbers of all isotopes
Isotopes
Atoms of the same element that have different numbers of neutrons
Mass number
the sum of the number of neutrons and protons in an atomic nucleus
Neutrons
mass # - protons
average atomic mass formula
(Percent to decimal)(mass) + (percent to decimal)(mass)