Hindi, asked by gurungsurya617, 5 months ago

particles of an atom,
Helium atom has an atomic mass
of 4 u and two protons in its
nucleus. How many neutrons
does it have?
w are Electrons Distributed

Answers

Answered by Anonymous

Answer:

ANSWER :-

2 Neutrons.

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.

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