click below
click below
Normal Size Small Size show me how
chem-v
VOCAB
Question | Answer |
---|---|
atom | smallest unit of matter that has all the properties of matter |
scientific model | an idea that allow us to create explanations of how we think of some parts of th world |
sientific evidence | collections of observations that many people have made |
atomic number | he number of protons is the nucleus of an atom |
mass number | the number of protons + number of neutrons |
atomic mass | same as the mass number "weight" |