Multiple choice

What is the valency of 52X24?

    • 2

  2. – 2
    • 1

  4. – 1
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A Correct answer
Explanation

Some elements, like the transition metals, have electronic configurations in which electrons from their inner shells can also be used as valence electrons; these elements can have several different oxidation states. Chromium can have a valency of +2, +3 or +6.

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