Physics, asked by divyam13, 1 year ago

Helium atom has atomic mass of 4 U and two protons in the nucleus how many neutrons does it have

Answers

Answered by mohantahemalata
3
2protons and 2 neutrons
Answered by bittersweet
4
It has two neutrons because electrons do not have any significant mass and it already has 2 protons ,therefore.
divyam13: sorey i cant understand but thank you
bittersweet: see we do not count the mass of electron
bittersweet: so only protons and neutrons are left
bittersweet: proton is 2
bittersweet: neutron is 2
bittersweet: 2+2=4
bittersweet: 4U
bittersweet: okay?
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