Question

A Group VIIA atom combines with a Group IA atom. The bond formed between them will most likely be:

A)covalent
B)ionic
C)50% covalent, 50% ionic
D)metallic

Answer 1

Answer: The correct answer is option B.

Step-by-step explanation:

• Ionic bond is formed when there is complete transfer of electrons from one element to another.

• Covalent bond is formed by the sharing of electrons between two elements.

• Metallic bond is formed when two metals combine together.

Electronic Configuration of Group VII-A :
`ns^2np^5`

This group require 1 electron to attain stable electronic configuration.

Electronic configuration of Group I-A :
`ns^1`

This group will loose 1 electron to attain stable electronic configuration.

So, there will be complete transfer of electron from Group VII-A to Group I-A and hence, will form ionic bond between them.

Hence, the correct option is B.