A number of electron in the outermost shell of chlorine is 7? what is its valency and why?
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valency is electron number which take part in chemical reaction.
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the number of electrons present in chlorine is 17. So by electronic configuration we get 2, 8, 7 so to make itself stable chlorine gain one electron and makes the octet complete.so the valency of chlorine is positive one.
poojaoberoi:
no it will be negative one. valency of non metals is always negative. chlorine accepts one electron to get 8 electrons and non metals always accept . so this means that they have less electrons. we are showing less electrons with help of a negative sign. so chlorine has 1 MINUS valency..
NOTE- THE ABOVE INFORMATION WRITTEN IN COMMENT IS 100 PER CENT ACCURATE.
u r wrong
but valecny of chlorine is 1 minus then how am iwrong
pls explain genuinely
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