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Equal number of protons and neutrons in ...

Equal number of protons and neutrons in the isotopes make them neutral. 15. Identify the difference between particle of each given pair.
I. `""_(6)Li and ""^(7)Li`
II. `""_(32)S and ""_(32)S^(2-)`
III `""_(39)K^(+) and ""^(40)Ca^(2+)`.

Text Solution

Verified by Experts

The correct Answer is:
C
`""_(6)Li and ""^(7)Li` : Same number of protons and electrons but different number of neutrons
`""^(32)S and ""^(32)S^(2-)` : Same number of protons and neutrons but different number of electrons.
`""^(39)K^(+) and ""^(40)Ca^(2+)` : Same number of electrons and neutrons but different number of protons.
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