4) an atom has the electronic configuration 1s2 2s2 2p6 3s1 what is the valency of this?
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hi dear
1s2 2s2 2p6 3s1 is an electronic configuration of
Electronic Configuration of Bromine,Br
Which element has the electron configuration of 1s2 2s2 2p6 3s2 3p6 3d10 4s1
hopes its helps you
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