Question

Where is most of the mass of an atom located? A.in the nucleus B.in the orbits C.in the electrons Dit is split between the nucleus and the orbits

Answer 1

I think it is A........................................ 

Answer 2

Answer:

A. In the nucleus

Explanation:

Atom mainly consisting of its three subatomic particles

1) Electron

2) Proton

3) Neutron

as we know that mass of electron is given as

$m_e = 9.11 \times 10^{-31} kg$

mass of proton and neutron is approximately same and given by

$m_p = m_n = 1.67 \times 10^{-27} kg$

now we know that mass of electron is 10000 times smaller than the mass of neutron and proton

so major part of mass of atom is due to proton and neutron

so its whole mass is concentrated in its nucleus

correct answer would be

A. In the nucleus