Question

X has a formula X2CO3 as its carbonate.IfX belongs to period 2.What is X.Give its configuration.to which group does it belong.what is the formula of its sulphate​

Answer 1

Explanation:

Given -

X has a formula X2CO3 as its carbonate

• X belongs to Period 2

To Find -

1. What's X
2. Give its electronic configuration
3. To which group does it belong.
4. What is the formula of its sulphate.

Solution -

X has a formula of Carbonate is X2CO3.

We, know that CO3 has Valency 2. Then, X must be it's Valency 1. So, After Criss-crossing it makes X2CO3.

Hence,

X has Valency 1.

If X has Valency 1

Then, It belongs to 1st Group.

And Its given that X belongs to 2nd period.

Then, X is Lithium (Li).

Electronic configuration = 1s² 2s¹

It belongs to 1st Group. (s-block element)

Formula of Sulphate = X2SO4

Answer 2

Answer:

Ӿ ł₴( Ⱡł )Ⱡł₮ⱧłɄ₥

Explanation:

1s2 2x2

s block

X2SO4