Question

if the atomic number of an element `y´ is 17 a) write the formula of the compound formed when this elements y reacts with an element z having two electrons in the outermost s subshell? please answer me fast ​

Answer 1

Answer:

Explanation:

when you write the shell wise electronic configuration (i.e.,2,8,7),you can find that the valency of element y is 1.

the valency of element z is 2(as it has two electrons in the outermost shell).

so the compound formed is XY2.(here i have written the cation part first and then the anion part)

hope this helps

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