Question

The valency of metal M in the compound M2O5 ________.
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Answer 1

Answer:

The metal is magnesium and Valency is 2

Answer 2

Answer:

• Aluminium Valncy = 3

Explanation:

• M2O3 is the formula for the oxide formed by a metal M.
• That means, the metal's valency is 3. The periodic table's group IIIA (13) has elements having valency 3.
• As a result, metal M belongs to Period 3 and Group IIA of the periodic table.
• That indicates that the metal M is Aluminium.
• Aluminium has an atomic number of 13 and is a metal.
• The electronic setup is (2,8,3)