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| 1. |
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 |
| Answer» <p style="text-align: justify;"><span style="color:#000000"><span style="font-family:Arial,Helvetica,sans-serif"><strong>Correct option (b) 1s<sup>2 </sup>2s<sup>2</sup> 2p<sup>6</sup> 3s<sup>2</sup> </strong></span></span></p><p style="text-align: justify;"><span style="color:#000000"><span style="font-family:Arial,Helvetica,sans-serif"><strong>Explanation:</strong></span></span></p><p style="text-align: justify;"><span style="color:#000000"><span style="font-family:Arial,Helvetica,sans-serif">Alkaline earth metals are s-block, normal elements having ns<sup>2</sup> general electronic configuration.</span></span></p> | |