Question

(c)
Red cabbage extract


An element X' with atomic number 11 forms a compound with element Y
with atomic number 8. The formula of the compound formed is
(a) XY
(b) X,2Y
(c) XY,2
(d) X2y3
​

Answer 1

Answer:

x2y is the right answer bro

Answer 2

X has atomic number 11.

Hence electronic configuration of X is 2,8,1.

And it's valancy is 1.

Similarly,

Y has atomic number 8.

Hence it's electronic configuration is 2,6.

And it's valancy is 2.

Therefore,there formula is c)X2Y