Question

the atomic number and atomic mass number of calcium are 20 and 40 respectively;deduce the number of neutrons present in calcium nucleus​

Answer 1

Answer. Number of neutrons- 40-20=20, electrons-20 and proton -20. Themass number of an isotope is the sum of the number of protons as well asneutrons in the atomic nucleus. Overall, the atomic number is thenumber of protons.

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