helium atom has an atomic mass of 4u and 2protons and in its nulecules . How many neutrons does it have
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it will have 2 neurons as mass is equal to no. of proton plus no. of neutron.
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Atomic mass = no of protons + no of neutrons
So 4 = 2+ no of neutrons
No of neutrons = 4-2=2
Hope this helps you....
So 4 = 2+ no of neutrons
No of neutrons = 4-2=2
Hope this helps you....
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