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The number of electrons, protons and neu...

The number of electrons, protons and neutrons in a species are equal to 18,16 and 16 respectively. Assign the proper symbol to the species.

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Atomic number = 16. Hence, the element is sulphur (S). Mass number = 16+16 = 32 charge = 16 - 18 = -2 therefore, the symbol is `""_16^33""s^(2-)`
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