Question

1.Write the valence shell configuration of Group number V/A
2.Which family has stable configuration
3.Write valence electrons of Halogen family
4.Oxygen belongs to which family
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Answer 1

Answer:

Li no is 7 electronic configuration is 2,5. 5 is the valency is 5

F valency is 7

Oxygen belong to noble gases

Answer 2

1. The valence shell configuration of Group number V/A is :

V/A group is nitrogen family.

• Valence shell electron present in this family = 5

•valence shell configuration =ns^2np^3

where n = principal quantum number

2. Family which has stable configuration is noble gas family

• Because they have complete electronic configuration which make them less reactive and more stable.

3. Valence electrons of Halogen family

Electronic configuration = ns2np5,

Valence electrons = 1

4. Oxygen belongs to chalcogen family ( VI A )