What is the valency of aluminum??
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Posted by Palak Pandey 5 years, 2 months ago
- 3 answers
Meghna Thapar 5 years, 2 months ago
The valency of aluminium is 3 instead of 5 because the energy required to remove 3 electrons from the outermost shell is less than the energy required to add 5 electrons. Because aluminum has three, that means three fluorines can bond. The make the formula AlF3, also known as aluminum trifluoride. Each of the fluorine atoms gets an electron to fill their shell, and the aluminum loses three, giving it a filled shell too (remember, aluminum has three extra electrons).
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Madhav Shukla 5 years, 2 months ago
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