If some elemente form oxides having the same general
formula
properten
they will have similar chemical Properties??
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Answer:
The elements in a group tend to have similar physical and chemical properties because of their similar outer shell electron structure.
1. Valency of first group elements is 1 and that of oxygen is 2. Hence, oxide of first group is X
2
O.
Eg; H O
1 2 (Criss cross)
H
2
O is the oxide.
2. Group 13 has a valency of 3 and that of halogen is 1. Hence, halide of group 13 is MX
3
Eg; B Cl
3 1 (Criss cross)
BCl
3
is the halide.
3. The valency of the Group 2 elements is +2 and that of Group 16 elements is -2. Group 2 loses electrons and group 16 accepts electrons. Hence, compounds formed are MY.
Eg; Mg O
2 2 (Criss cross)
MgO is the compound
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