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What are the possible oxidation numbers of an element if its atomic number is 17?

Chemistry
JAMB 2020

What are the possible oxidation numbers of an element if its atomic number is 17?

  • A. -1 and 7
  • B. -1 and 6
  • C. -3 and 5
  • D. -2 and 6
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Correct Answer: Option A
Explanation

The element with atomic number 17 is Chlorine with a valency of -1, that is it needs to receive an electron or possibly lose seven electrons to obey the octet rule.

There is an explanation video available below.


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Explanation Video

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