Download the app

Questions  

Among the following, the element follows duplet rule is             

Remember concepts with our Masterclasses.

80k Users
60 mins Expert Faculty Ask Questions
a
Helium
b
Sodium
c
Oxygen
d
Sulphur

Ready to Test Your Skills?

Check Your Performance Today with our Free Mock Tests used by Toppers!

detailed solution

Correct option is A

In Helium there is only two electrons present in 1s orbital and  K shell is completely filled.

Talk to our academic expert!

+91

Are you a Sri Chaitanya student?

ctaimg

Create Your Own Test
Your Topic, Your Difficulty, Your Pace



Practice More Questions

Easy Questions

Moderate Questions

Difficult Questions


Download the app

phone icon
whats app icon