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Science · 2024 · 1 mark
CBSE 2024 · Region 2 · Set 2 · Q2
The number of shells required to write the electronic configuration of Potassium (At. No. $\displaystyle 19$)
Official answer
From CBSE’s own marking scheme for this paper.
(D)
$\displaystyle 4$
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CBSE Class 10 Science past-paper question from the 2024board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.