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how to conclude metals or non metals

Asked by smjaanu 7th March 2009, 5:59 PM
Answered by Expert

Dear student,

The above rules are not  applicable in general. Platinum is a transition element and does not follow the above rule. A more general definition applicable for calculation of valency in this case is 'valency or valency number, is a measure of the number of chemical bonds formed by the atoms of a given element.'

Answered by Expert 8th March 2009, 7:32 PM
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