Question

Q54. An element with atomic number will form a basic oxide
b) 17
a) 7
014
d) 11​

Answer 1

The answer to this question is seven

Answer 2

So, element with atomic number 7 (electronic configuration 2, 5) with is non-metal (N) and it will form an acidic oxide. Rest three elements atomic numbers, 3 (Li), 12 (Mg) and19 (K) are metals and hence form basic oxides

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