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Select the properties which increases regularly with increase in atomic number in atomic number in first group elements of modern periodic tableA. Metalic characterB. Number of electrons in valence shellC. Reducing powerD. Atomic size |
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Answer» Correct Answer - A::D (A) Order of metallic character `: Li lt Na, Klt Rb lt Cs` (B) Each element of the group has `ns^(1)` configuration and `1e^(-)` in its valance shell. (C ) Order of reducing power `Na lt K lt Rb lt Cs lt Li` (D) Order of size : `Li lt Na lt K lt Rb lt Cs` |
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