Question

Atomic number of a nucleus is Z and atomic mass is M. The
number of neutron is
(a) M – Z (b) M (c) Z (d) M + Z

Answer 1

hIf u denotes 1 atomic mass unit. One atom of an element

has mass exactly equal to Au, where A is mass number of

element.

(a) A = 1

(b) A = 12

(c) A = 16

(d) A can take up any integralAtomic number of a nucleus is Z and atomic mass is M. The

number of neutron is

(a) M – Z (b) M (c) Z (d) M + Z8e8e828172b882818 &@×@&!%$|₹~_+÷÷*^~^

Answer 2

Answer:

it is a direct answer .from the definition ,we count the number of neutrons from M -Z . so the answer is is (a)