an element has atomic number 13.write the formula of its oxide?
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Since the atomic number is 13, therefore the valency is 3. So the element will be placed in group VI. Therefore, Option C is true. The formula of Aluminium Oxide is $A{l_2}{O_3}$ because it is present in the period 3 of the periodic table.
Answered by
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Answer: Since the atomic number is 13, therefore the valency is 3. So the element will be placed in group VI. Therefore, Option C is true. The formula of Aluminium Oxide is $A{l_2}{O_3}$ because it is present in the period 3 of the periodic table.
Explanation:
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