Q.3.
Read the Table given below answer the following questions :-
4
Atomic Number
4
Element
Beryllium
Boron
Carbon
Nitrogen
Oxygen
Flourine
5
6
Valency
2
3
4
3
2
1
7
8
9
(a) In the Table, find out which element's atom has to gain or lose the highest number of electrons to complete
its octet?
(b) Nitrogen atom's outermost shell has 5 electrons. Then how is its valency 3, not 5?
How many valence electrons do Oxygen has?
In what ways can an atom achieve an octet?
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