additional activities:

SHORTHAND NOTATION
³¹P
¹⁸ O
⁵⁸ Ni ²
ATOMIC NUMBER
____
____
28
MASS NUMBER
___
8
___
NO. OF ELECTRONS
15
____
____
NO. OF NEUTRONS
15
___
___
CHARGE
___
___
___


pa help po please i really need it
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