Question

Which group of elements could be placed in Mendeleev's Periodic Table without disturbing the original order? Give reason.

Answer 1

Answer:

Inert gases

Explanation:

Inert gases could be placed in Mendeleev's Periodic Table without disturbing the original order. Noble gases: like Helium, Neon and Argon had been mentioned by various scientists even before Mendeleev.

Answer 2

$\bf \huge \sf \pink{Answer}$

Inert gases

$\bf \sf \green{Explanation:-}$

Inert gases could be placed in Mendeleev's Periodic Table without disturbing the original order. Noble gases: like Helium, Neon and Argon had been mentioned by various scientists even before Mendeleev.