Atomic number of Beryllium and Phosphorous is 4 and 15 respectively. Write the electronic configuration of the two and deduce the valency from the same. To which group do they belong?
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Answered by
1
Answer:
Beryllium-(2,2)
Phosphorus-2,8,5
Valency of beryllium is 2
Valency of Phosphorus is 3
beryllium belongs to group 2 and phosphorus belongs to group 15
Answered by
2
Answer:
Atomic Number:-
Beryllium=4
Phosphorus=15
ELECTRONIC CONFIGURATION:-
of :-
Beryllium:- 2,2
Phosphorus:- 2,8,5
GROUP:-
Beryllium:- group 2
Phosphorus:- group 15
Valency :-
Beryllium:-2
It will lose electron from its last shell for completing octane and follow stable noble gas configuration and get positive charge (Be+) .
Phosphorus:-3
It will gain electron for completing octane and follow stable noble gas configuration and get negative charge (P-)
Thank you!
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