give reason sodium atomic number 11 and chlorine atomic number 17 are kept in same period but sodium is a metal and chlorine is a nonmetal???
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Modern periodic table have 18 groups and 7 periods. ... The elements A, B, C, D and E have atomic number 9, 11, 17, 12 and 13 respectively. ... (a) A soft metal stored under ...
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chlorine is present at extreme right where nonmetal are kept and has more electronegativity
and sodium is present at extreme left where metals are kept....
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