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Which one of the following configurations is correct for alkaline earth elements ? (a) 1s2 2s2 2p3 (b) 1s2 2s2 2p6 3s2 (c) 1s2 2s2 2p6 3s2 3p2 (d) 1s2 2s2 2p6 |
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Answer» Correct option (b) 1s2 2s2 2p6 3s2 Explanation: Alkaline earth metals are s-block, normal elements having ns2 general electronic configuration. |
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