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प्रश्न
The metals of Group 2 from top to bottom are Be, Mg, Ca, Sr and Ba. State the common feature in the electronic configuration.
टिप्पणी लिखिए
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उत्तर
On moving down the group, the number of electrons in the outermost shell, i.e. valence electrons, remains the same. So, the valency in the group remains the same.
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