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Give name of element, symbol & electronic configuration of 1^(st)group. |
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Answer» Solution :Elements in the same VERTICAL column or group have similar valence shell electronic configurations, the same number of electrons in the outer orbitals and similar properties. e.g. The group 1 elements (alkali METALS `ns^(1)` have his valence shell electronic CONFIGURATION as shown below :  THSU it can be see that the properties of an element have PERIODIC dependence upon its atomic number and not on relative atomic mass . |
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