Question

The atomic number of an element A is 12 . What will be the formula of its chloride? Please tell in short...​

Answer 1

Answer:An element X (atomic number 12) is Mg and another element Y (atomic number 17) is Cl. and the compound formed is MgCl

2

​

[Z].

Mg+Cl

2

​

→MgCl

2

​

I. Molecular formula of Z is MgCl

2

​

which is XY

2

​

type.

II. MgCl

2

​

is soluble in water because it is an ionic solid so it will dissolve only in a polar solvent like water.

III. Mg and Cl

2

​

are joined by the transfer of electrons from magnesium to chlorine.

IV. MgCl

2

​

conduct electricity in the molten state because it is an ionic compound means it is made of ions and when it is melted the ions move apart and become charge carriers,

Explanation:

Answer 2

Answer:

ACl 2

Explanation:

Electronic confirmation of A is (2,8,8,2).

So the valency of element A is +2.

As valency of Chlorine is -1 ,

So Formula becomes ACl 2 by crossing the valencies .

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