A metal P forms an oxide having the formula P2O3. The electronic configuration of P is 2,8,3. Using this information find out the following: (2m) i) Period and group P belongs to. ii) Write the formula of a compound if P forms a sulphate compound.
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no. of shells so n = 3From the formula M2O3 its valency is 3. Since it is a metal its valence shell has 3 electrons.So its electronic configuration is 2 8 3Atomic number =13Hence the metal is Aluminum with valency 3.
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