AP EAMCET Engineering 21 Sep 2020 Shift 2 Paper

(d) An element can be represented as ‌ZAX.
where, X= symbol of element
Z= atomic number or number of protons
A= mass number = sum of number of protons and neutrons
Therefore, for ‌1632S−2,
number of protons =16,
number of neturons =32−16=16 and
electrons =18