Question

Which group of elements could be placed in mendeleeves periodic table without disturbing it?

Answer 1

Answer:

nobel gas group not sure

Answer 2

Answer:

Noble gas

According to Mendeleevs classification, the properties of elements are the periodic function of their atomic masses and there is a periodic recurrence of elements with similar physical and chemical properties. Noble gas being inert, could be placed in a separate group without disturbing the original order.