Question

3(a)
3(b)
3(c)
State Mendeleev's Periodic Law.
Why did Mendeleev leave some gaps in the Periodic table ?
If the letter 'R' was used to represent any of the elements in
group, then the hydride and oxide of carbon would respectivel
represented as
(i) RHĄ, RO
(i) RHĄ, ROZ
(iii) RH, ROZ
(iv)
RH,, RO
3(d)
Isotopes are​

Answer 1

Answer:

the elements were arranged on the basis of their fundamental properties