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22-10-2020
Chemistry

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Identify the fourth-row element X that forms the ion. Identify the fourth-row element X that forms the ion. Se Ge As Kr

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22-10-2020

Answer:

Se

Explanation:

SeO3 is trigonal planar molecule having all bond angles at about 120 degrees.

It is found in the fourth row and is a member of group sixteen. Its trioxo anion possess the structure shown in the question.

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