Question

An element has atomic number 11 and mass number 24 what does the nucleus contain

Answer 1

nucleus contains 11 protons because atomic no is equal to no of protons

Answer 2

Heya,

Mass number = Number of protons + Number of neutrons
> 24 = Atomic Number + Number of neutrons
> 24 - 11 = Number of neutrons
> Number of neutrons = 13

Hence , the nucleus contains 13 neutrons and 11 protons.

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