PROTON
ATOMIC MASS
NEUTRON
PERIOD
ISOTOPE
GROUP
ELECTRON
Atomic Number
NO CHARGE...I live in the nucleus
a ROW on the periodic table
I have a "+" charge and live in the nucleus.
protons + neutrons
Identifies the element and is equal to the # of protons in the nucleus.
element with same # of protons but different # of neutrons: Examples: Carbon 12, Carbon 14
a COLUMN on the periodic table ; sometimes called a family; elements share common characteristics
negative charge and orbits around the nucleus