Question

Even though lanthanides lie on the same group why they have Different atomic numbers

Answer 1

Answer:

Explanation:

The lanthanide series consists of the 14 elements, with atomic numbers 58 through 71, that follow lanthanum on the periodic table of elements. These 14, along with the actinides—atomic numbers 90 through 103—are set aside from the periodic table due to similarities in properties that define each group.