Name: Valencies of Some Common Ions
Uploaded: 2019-07-19
Duration: 4 min 56 s
Description: Ionic compounds are composed of positively charged and negatively charged ions. Do you know what the charges on these ions are called? Let’s find out in this...

Question

If the valency of oxygen is

2

, derive the valency of the other elements present in the following oxides:
Sodium oxide

({N a}_{2} O),

Zinc oxide

(Z n O),

Lead oxide

(P b O)

, Aluminium oxide

{(A l}_{2} O_{3}),

Calcium oxide

(C a O),

Barium oxide

(BaO)

, Copper (II) oxide

(CuO)

.

Accepted Answer

Valency is the combining capacity of an element. It plays an important role in writing the chemical formulae for a compound. To write a chemical formula, we should know the symbols of elements or ions forming the compound and valency of each constituent element of the compound. When we write a chemical formula we write the valencies of the constituent elements by interchanging as subscripts.

The valencies of other elements present in the oxides are as follows-

Valency of Sodium in $N a_{2} O$ is $1$

Valency of Zinc in $Z n O$ is $2$

Valency of lead in $P b O$ is $2$

Valency of Aluminium in ${A l}_{2} O_{3}$ is $3$

Valency of Calcium in $(BaO)$ is $2$

Valency of Barium in $B a O$ is $2$

Valency of Copper in $C u O$ is $2$ .

If the valency of oxygen is $2$ , derive the valency of the other elements present in the following oxides:
Sodium oxide $({N a}_{2} O),$ Zinc oxide $(Z n O),$ Lead oxide $(P b O)$ , Aluminium oxide ${(A l}_{2} O_{3}),$ Calcium oxide $(C a O),$ Barium oxide $(BaO)$ , Copper (II) oxide $(CuO)$ .

Important Questions on Matter and Chemical Formulae

Learn and Prepare for any exam you want !

If the valency of oxygen is 2, derive the valency of the other elements present in the following oxides: Sodium oxide Na2O, Zinc oxide ZnO,Lead oxide PbO, Aluminium oxide (Al2O3),Calcium oxide CaO, Barium oxide BaO, Copper (II) oxide CuO.

Important Questions on Matter and Chemical Formulae

Learn and Prepare for any exam you want !

If the valency of oxygen is $2$ , derive the valency of the other elements present in the following oxides:
Sodium oxide $({N a}_{2} O),$ Zinc oxide $(Z n O),$ Lead oxide $(P b O)$ , Aluminium oxide ${(A l}_{2} O_{3}),$ Calcium oxide $(C a O),$ Barium oxide $(BaO)$ , Copper (II) oxide $(CuO)$ .