Question

for chlorine, Z = 17,A = 35. give the number of protons, electrons and neutrons in chlorine and chloride ion

Answer 1

Z = p
Hence, No. of protons= 17
It is a neutral atom.
Therefore, p = n
n = 17
A = p+n
35 = 17+n
n = 35-17
Therefore, n = 18