Question

3.
Idi
The number of atoms in 1 gram of iron are
a) 2 x 102
b) 1.07 x 1020
c) 2.0 x 1024
d) 1.07 x 1022
4. 1 atom of iron weighs
IC
1020​

Answer 1

Answer:

bro I have learnt recently but I forgot