Periodicity in the properties of elements in modern periodic table is due to |
|||
(a) |
a regular increase in atomic weight of elements |
(b) |
periodicity in the electronic configuration of atom of elements |
(c) |
successive increase in the atomic number of elements |
(d) |
existence of families of elements |
Periodicity in the properties of elements in modern periodic table is due to |
|||
(a) |
a regular increase in atomic weight of elements |
(b) |
periodicity in the electronic configuration of atom of elements |
(c) |
successive increase in the atomic number of elements |
(d) |
existence of families of elements |
successive increase in the atomic number of elements