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Which among these atoms gains electrons?
Electronic configuration
Sodium atom
2,8,1
Chlorine atom
2,7
Important Questions on Periodic Table
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How the metallic character of first group elements varies on moving from top to bottom in the group? Come to a conclusion by assessing the size of the atom.
Element |
Electronic configuration |
H | 1 |
Li | 2, 1 |
Na | 2, 8, 1 |
K | 2, 8, 8, 1 |
Rb | 2, 8, 18, 8, 1 |
Cs | 2,8, 18, 18, 8, 1 |
Fr | 2, 8, 18, 32, 18, 8, 1 |

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