The number of electrons, protons and neutrons in a species are equal to 18,17 and 20 respectively. The proper symbol to the species is

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Cl1735

Cl - 1735

Cl - 1737

Cl -2 1737

answer is C.

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Detailed Solution

Given, Z=17 and A=n+p=20+17=37 ; That represents "Cl"But the no. of electrons = 18(>Z)Hence It is anion and charge = 18-17=1∴The symbol is Cl - 1737

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