Question

The atomic number of an element 'X' is 20. Write the formula of its chloride. *
a).X2Cl3
b).X2Cl
c).XCl2
d).X3Cl2

Answer 1

Answer:

XCl2 is the answer.

Atomic number of the element X is 2 whereas that of Cl is 1.So after criss cross method the compound formed will be XCl2

Answer 2

Answer:

c) XCl2

Explanation:

X+2 + Cl-

Use cross over mechanism

u will get

XCl2

Hope this will be helpful to u..