Please wait...
Contact Us
Need assistance? Contact us on below numbers

For Study plan details

10:00 AM to 7:00 PM IST all days.

For Franchisee Enquiry



Thanks, You will receive a call shortly.
Customer Support

You are very important to us

For any content/service related issues please contact on this number

93219 24448 / 99871 78554

Mon to Sat - 10 AM to 7 PM

In which case the energy released is Minimum....

1)Cl— Cl-

2)B— B-



Please explain your answer 

Thanks :)

Asked by jhajuhi19 5th March 2019, 5:38 PM
Answered by Expert

The energy released when an electron is added to a neutral atom is called an electron affinity.

The minimum energy will release in case of B → B-.

an increase in atomic size increases, electron affinity decreases as the incoming electron gets added further away from the nucleus.

Therefore, the incoming electron will be more attracted to the nucleus and the energy gain when adding the electron will be more that is electron affinity increases.

Cl belongs to 3rd period hence it’s affinity is more than rest.

Boron, Nitrogen and oxygen belong to the same period but as per the trend the size of boron is bigger hence its electron affinity is less.

Therefore, the formation of boron anion requires minimum energy.

Answered by Expert 5th March 2019, 7:44 PM
Rate this answer
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

You have rated this answer /10

Your answer has been posted successfully!

Chat with us on WhatsApp