Question

An atom X has three electrons more than the noble gas configuration.What type of ion will it form?Write the formula of it's (i)sulphate (ii)nitrate (iii)phosphate (iv)carbonate (v)hydroxide

Answer 1

Scince x has 3 e- more than the noble gas than Obviously the X must be Sodium .
1. Na2SO4
2. NaNO3
3. NaPO4
4. Na2CO3
5. NaOH
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Answer 2

It will form a cation (+ve ion).

EXPLANATION

For attaining noble gas configuration, it will loose 3 electrons. Then, it will form a cation (positive ion) and its valency is 3.

Formula of Sulphate = XSO4

Formula of Carbonate = XCO4

Formula of Phosphate = X3(PO4)2

Formula of Hydroxide = X(HO2)

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