Question

Electronic configuration of an atom X is (2,8,2) and another atom Y is (2,8,6) . Write the formula of the compound formed by the combination of X and Y.

Answer 1

Answer:

ANSWER IS "XY"

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Answer 2

An Atom having electronic configuration (2,8,2), then the Atomic Number of the Atom will be (2+8+2) = 12

The Atom Having Atomic Number 12 is Magnesium (Mg).

So, X = Magnesium (mg)

Similarly, Atom Y has a Atomic Number Of (2+8+6) = 16

So, Y = Sulphur (S)

Compound Formed Will Be:

Valency Of Mg (2,8,2) = 2+

And Valency Of Sulphur (2,8,6) = 2-

The Valency Get Cancelled As They Are Of Opposite Signs.

So, Mg + S ----> MgS