Question

the element X has the electronic configuration 2, 8, 18, 8, 1. without identifying X,
(a) predict the sign and charge on ion of X
(b) write if X will be an oxidising agent or reducing agent and why
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Answer 1

(a) since element X has one electron in its valence shell it will lose it one electron to get stable therefore the charge on X is 1 with sign as positive

That's is

${x }^{ + 1}$

(b) it will gain one electron as it will be cation, So it will be reduced or will show reduction

thus it will be called Oxidising agent

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