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what will be the valency of an element having atomic number (z)=7 ? Can you pls suggest step wise methods to solve this problem.

Asked by Amrut Kurtkoti 2nd March 2015, 6:55 PM
Answered by Expert
Answer:

Hi Amrut,

The combining capacity of the element is called valency.

If the atomic number of the given element is 7 then,

The electronic configuration will be (2, 5). That is, it will have 2 electrons in its K shell and 5 electrons in the L shell

Thus, it will require 3 more electrons to complete its octet.Thus according to the definition, the valency of an element will be 3.

Hope this clears your doubt!

Answered by Expert 2nd March 2015, 7:04 PM
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