Question

2. If mass of one atom is 3.32x 10-g, then calculate number of nucleons (neutrons and
protons) present in 2 atoms of the element :
(a) 40
(b) 20
(c) 10
(d) 40 NA​

Answer 1

Answer:

ANSWER

Number of nucleon =

Molarmassofnucleon

Massofatom

=

1.6726×10

−24

g/nucleon

3.32×10

−23

g

=19.8=20(approximately)

It is given that element comprises of 2 atoms

Hence,number of nucleon = 2×20=40