Question

x^2- has 56 electrons .Then the atomic number x is

Answer 1

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$\: here \: x ^{ - 2} \: has \: \: has \: 56 \: electrons \: means \: x \: has \: 54 \: electrons. \: as \: we \: know \: tht \: no \: of \: electrons \: is \: equal \: to \: atomic \: no. \: therefore \: atomic \: no. \: of \: x \: is \: 54$

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