Noble gases are the elements located in the eighth group of the periodic table. These elements have the following properties:
They are odorless
They have single atoms (monoatomic)
They are colorless
They have very low chemical reactivity
The naturally occurring noble gases are helium, neon, argon, krypton, xenon and radon.
The maximum number of D orbitals in a principal energy level is 5.
Answer:
D) cooling of the reaction mixture
Explanation:
Increase in temperature speedens the rate of a chemical reaction
