A hypothetical element jA is isotonic with P. x
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Explanation:
(a) Since, it has 6 valence electrons, it belongs to group no. 16.
(b) It has 3 Valence shells, so it belongs to period no 3.
(c) The number of valence electron is 6.
(d) The valency of E is 2 because it requires 2 electrons to achieve its stability .
(e) It is a non-metal.
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