Helium atom an atomic mass of 40u and two protons in its nucleus. How many neutrons does it have
Answers
Answered by
66
Answered by
0
Answer:The mass of an atom is given by the sum of the masses of protons and neutrons present in the nucleus. Since helium atom has a atomic mass of 4 u and it has two protons. Two protons contribute 2 u to atomic mass. Hence, it must contain 2 neutrons.
is it helpful!? if so, mark me as brainliest
Similar questions