Iron gains three electrons
Answer:
No of neutrons and protons decides mass of the atom. Electrons having negligible
mass are ignored.
Mass of atom
Mass of atom= sum of no of protons(Z) and neutons(N)
=Z+N
For eg:
In hydrogen atom,
Mass of H= Z+N
=1+0
=1 AMU
Answer:
The shaded area 2 is likely to have subatomic particle that are constantly in motion. I took the test and I got it right
