Why Helium is known as noble …
CBSE, JEE, NEET, CUET
Question Bank, Mock Tests, Exam Papers
NCERT Solutions, Sample Papers, Notes, Videos
Posted by Prithvi S 7 years, 2 months ago
- 1 answers
Test
Related Questions
Posted by Anmol Kumar 1 year, 8 months ago
- 0 answers
Posted by Yash Dwivedi 1 year, 8 months ago
- 3 answers
Posted by Prasanna Mendon 8 months, 2 weeks ago
- 1 answers
Posted by Moksh Bhatia 1 year, 8 months ago
- 0 answers
Posted by Himanshi Sharma 1 year, 8 months ago
- 0 answers
Posted by Op Garg 1 year, 8 months ago
- 2 answers
Posted by Huda Fatima 1 year, 8 months ago
- 2 answers
myCBSEguide
Trusted by 1 Crore+ Students
Test Generator
Create papers online. It's FREE.
CUET Mock Tests
75,000+ questions to practice only on myCBSEguide app
Yogita Ingle 7 years, 2 months ago
The noble gases are the least reactive out of all the elements because each one has a full valence shell (8 electrons in outer shell), which is the most stable arrangement of electrons for an atom. They are satisfied with their 8 electrons and do not feel the need to react with other atoms to “fill the shell” to attain stability as others do.
1Thank You