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what do you notice in the number of valence electrons of metals ,non-metals and noble gases

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Maryjoycemalimataid
the no. of metals is increasing 
the no. of non metals is decreasing
noble gases is constant in no.8
Jannajoydid
valence electrons of metals will have 1 or 2 lone electrons, while nonmetals have mostly 2 lone electrons and noble gases does not have lone electrons