An element 'X' has a Valency 2:
(a)Write the chemical formula of its oxide
(b)Write the chemical formula of its carbonate
(c)Is element 'X' a metal or non- metal?

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Solution

a. XO (valency of oxide is 2).
b. MCO₃ (valency of carbonate is 2)
c. X is a metal as it forms oxides and carbonates by transferring its valence electrons to these species.

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An element 'X' has a Valency 2:(a)Write the chemical formula of its oxide(b)Write the chemical formula of its carbonate(c)Is element 'X' a metal or non- metal?

a. XO (valency of oxide is 2). b. MCO3 (valency of carbonate is 2) c. X is a metal as it forms oxides and carbonates by transferring its valence electrons to these species.

An element 'X' has a Valency 2:
(a)Write the chemical formula of its oxide
(b)Write the chemical formula of its carbonate
(c)Is element 'X' a metal or non- metal?

a. XO (valency of oxide is 2).
b. MCO₃ (valency of carbonate is 2)
c. X is a metal as it forms oxides and carbonates by transferring its valence electrons to these species.