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Based on the Group Valency of Elements State the Formula Lot the Following Giving Justification for Each - Science

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Based on the group valency of elements state the formula lot the following giving justification for each :-

(i) Oxides of 1st group elements,

(ii) Halides of the elements of group 13, and

(iii) Compounds formed when an element of group 2 combines with, an element of group 16.

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Solution

(i) Valency of group 1 elements: 1

     Valency of oxygen: 2

Oxides of group 1 elements:

Formula of the oxides of group 1 is M2O, where M is the group 1 element and O is oxygen.

(ii) Valency of group 13 elements: 3

     Valency of halogens: 1

Halides of group 13 elements:

Formula of the halides of group 13 is MX3, where M is the group 13 element and X is halogen.

(iii) Valency of group 2 elements: 2

      Valency of group 16 elements: 2

Compounds of group 2 and group 16 elements:

Formula of the compounds of group 2 and 16 is MN, where M is the group 2 element and N is the group 16 element.

Concept: Periodic Properties
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