Chemistry, asked by harnoork613, 7 months ago

Helium atom has an atomic mass of 4u and two protons in its nucleus. How many neutrons does it have?

Answers

Answered by sufiyamaner73
2

Answer:

2 neutrons

Explanation:

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.

Hope it helps you !

Answered by chhaviramsharma9564
0

Explanation:

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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