Which of the following is a noble chemical element of the modern periodic table?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. Neon
- The noble gases are odorless, colorless, scentless, bland and non-flammable.
- The noble gases have full valence electron cells.
- They were once classified group 0 in the periodic table because it was considred that they had a valence of 0.