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Abhishek Anand

Class 9th
Science
2 years ago

Write the Electronic Configuration of an element whose mass number is 31 and atomic number is 15. What is its valency?

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Muskan Anand

2 years ago

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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