Two elements x and y have atomic no 12,16 compare valency ,no of protons ,electrons in their ions
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electronic configuration of x element is 2,8,2
electronic configuration of y element is 2,8,6
valency of x element is +2
valency of y element is -2
no of proton and electron in x element is 12
no of proton and electron in y element is 16
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