Which of the properties remain unchanged on descending a group in the periodic table?
Which of the properties remain unchanged on descending a group in the periodic table?
(A) Atomic size
(B) Density
(C) Valency electrons
(D) Metallic character
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Correct option is: (C) Valency electrons
In a group, each elements have same number of valence electrons, but they have different number of shells.
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