Question

An element 11X23 forms an ionic compound with another element ‘Y’. Then the charge on theion formed by X is [ ]a) +1
b) +2
c) -1
d) -2

Answer 1

Dear Student,

◆ Answer -

(a) +1

◆ Explaination -

• For element X, atomic number is 11.
• Electronic configuration of X would be

E.C. = 1s2 2s2 2p6 3s1 = [Ne] 3s1

• Element X has only 1 electron in its outermost orbit, therefore it donates this e- to element Y forming X+ cation.
• Hence, charge on ion formed by X is +1.

Hope this helps you