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Get Answers to all your Questions
(a) How is possible valency of an element determined from the electronic configuration of its atom ?
(b) Determine the valency of an element X whose atomic number is 15.
Answers (1)
(a) Valency can be determined from no. of electron in outermost shell No. of electron in outermost shell can be observed by writting electronic configuration.
(b)
Element 'X' Has 5 electrons in outermost shell, hence valency is
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