atoms Flashcards
atom
a particle that makes up mater
proton
a part of an atom that has a positive charge
nutron
a part of an atom with no charge
elctron
a part of an atom with a negative charge
what makes up the nucleus of an atom
protons and neutrons
what makes a neutral charge
an equal amount of protons and neutrons
what makes a positive charge
protons
what makes up a negative charge
neutrons
what makes up an atom
neutrons protons and elctrons
how many electrons can fit in the first level
2
how many atoms dose it take to be thickness of tin foil
5000
how many times dose you have to cut through paper to get the smallness of an atom
30
what are the different metals
non metals, metals,metalloid
what happens if a atom is unstable
its radioactive
what happens to radioactive atom
they break down and make radiation