What is the formula and valency of aluminate?
What is the formula and valency of aluminate?
Aniket Singh , 10 Months ago
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11 grade chemistry others> What is the formula and valency of alumin...
1 AnswersAskiitians Tutor Team
The formula for aluminate is AlO₂⁻.
The valency of the aluminate ion, AlO₂⁻, is 2-. This means that the ion carries a negative charge of 2. The valency is determined by the charge of the ion, which is equal to the number of electrons gained or lost by the atom. In the case of the aluminate ion, aluminum (Al) has a valency of 3+ (loses 3 electrons), and oxygen (O) has a valency of 2- (gains 2 electrons). Therefore, to achieve charge balance, one aluminum atom combines with two oxygen atoms to form the AlO₂⁻ ion.
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