1
Q
IsotoPes
A
Same number of PROTONS (atomic number)
Different mass
2
Q
IsotoNes
A
Same number of NEUTRONS
Different number of protons
3
Q
IsoBars
A
BOTH, Same MASS number (protons+neutrons)
Different Atomic Number (protons)
4
Q
IsoMers
A
Same atomic MASS
Different Energy State
