Question

v) An atom having atomic number 20 and mass number 40. If it losses
two election, then calculate the no. of electron , proton and neutron of
that atom
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Answer 1

Answer:

All atoms of the same element have the same number of protons, but some may have different numbers of neutrons. For example, all carbon atoms have six protons, and most have six neutrons as well. But some carbon atoms have seven or eight neutrons instead of the usual six. Atoms of the same element that differ in their numbers of neutrons are called isotopes. Many isotopes occur naturally. Usually one or two isotopes of an element are the most