Write the electronic configuration for the element: 31 15X
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Explanation:
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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Answer:
HERE U GO!
Explanation:
The atomic number is 15 therefore electronic configuration = (2,8,5)
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