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noname [10]
3 years ago
7

If the neutral atom of an element has only 5 valence electrons it must be in which group? 1. VIIA 2. VA 3. IVB 4. VIA 5. IVA 6.

IIIA
Physics
1 answer:
quester [9]3 years ago
7 0

Answer:

2. VA

Explanation:

The valency electron or outer electron of a neutral atom of an element determines the group at which an element belong. The electronic configuration of an atom that have valency of 5 can be represented as 2 5 ,  2 8 5 etc.

The electronic configuration 2 5 represent Nitrogen atom while 2 8 5 represent phosphorus atom. The valency 5 depicts the element belongs to group 5A(VA).

This means atoms of valency electron of 3 belong to group IIIA, valency electrons of 4 belongs to group IVA, valency electron of 6 belong to group VIA  and valency electrons of  7 belong to group VIIA.  

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