Answer
a) $_{12}^{27}Mg$
b) $_{22}^{48}Ti$
c) $_{30}^{62}Zn$
Work Step by Step
Atomic numbers are taken from the periodic table.
a) Mg: Z=12, n=15: A=Z+n=27
$_{12}^{27}Mg$
b) Ti: Z=22, n=26: A=Z+n=48
$_{22}^{48}Ti$
c) Zn: Z=30, n=32: A=Z+n=62
$_{30}^{62}Zn$
