Question

Which electronic configuration occurs in outermost orbit of element of group 17 and period 3?

Answer 1

Answer:

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Answer 2

The electronic configuration of an element found in the third period and seventeenth group is 1s2 2s2 2p6 3s2 3p5.

This element is chlorine, denoted as Cl. It has 3 shells, since it lies in the third period, and has a total of seventeen electrons, because of its position in the periodic table. Its approximate atomic mass used during empirical calculations in chemistry is taken as 35.5 amu, where amu stands for atomic mass unit. It has an ionic charge of negative one (-1), and comes after fluorine in the periodic table group 17.