Question

An element M has three valance electrons. Then the formula of its chloride
With explanation..!

Answer 1

Using $criss- cross$ method of finding chemical formula

Valency of M = + 3  

Valency of CL = - 2

After cross over valencies, formula will be M₂CL₃

Answer 2

Answer:

The formula of chloride in which the element M has three valence electrons is $MCl_3$

Explanation:

Given that,

M is an element that has three valence electrons.

$Cl$ has one valence electron.

Do criss-cross method M³⁺⇒$3$ $Cl^{-}$⇒$1$

The formula of chloride in which the element M has three valence electrons is

$MCl_3$. In this case, the element can be Aluminum. Then the formula for  aluminum chloride is $AlCl_3$