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Science · 2024 · 3 marks
CBSE 2024 · Region 3 · Set 2 · Q28
Write electronic configuration of Sodium (At. No.11) and Oxygen (At. No. $\displaystyle 8$) and show the formation of the ionic compound obtained when these two elements combine. Name anion and cation present in the compound.
Marking-scheme solution
\(\displaystyle \mathrm{Na}=2,8,1 ; \mathrm{O}=2,6\)
Cation - Sodium Anion - Oxide
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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.