Write the electronic configuration of an element whose mass number is 31and atomic number is 15. What is its valency?
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The atomic number is 15 therefore electronic configuration = (2,8,5)
It gains 3 electrons to fill it's last shell with octate structure(eight electrons in outer shell) .
Therefore it's valency = 3.
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- Maheshwaran.
It gains 3 electrons to fill it's last shell with octate structure(eight electrons in outer shell) .
Therefore it's valency = 3.
Feel free to message me if you have any doubts.
May this year be prosperous and glorious for you.
Please mark my answer as brainliest.
- Maheshwaran.
Sumitdongardive1:
Nice
Thanks
Answered by
22
HEY THERE
THE VALENCY IS 3.
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