They f-block elements of the periodic table contains those elements in which:

Question

They f-block elements of the periodic table contains those elements in which: (A) only 4f-orbitals are progressively filled in 6th period. (B) only 5f -orbitals are progressively filled in 7th period. (C) 4f and 5f orbitals are progressively filled in 6th and 7th periods respectively. (D) none of these

Tardigrade Admin · Accepted Answer

Electronic configuration of f-block element (n-2) f1-14 (n-1)d10, ns2 f- block starts with 6th period (n=6)

Q. They f-block elements of the periodic table contains those elements in which:

only 4f-orbitals are progressively filled in 6th period.

only 5f -orbitals are progressively filled in 7th period.

4f and 5f orbitals are progressively filled in 6th and 7th periods respectively.

none of these

Electronic configuration of f-block element $(n - 2) f^{1 - 14} (n - 1) d^{10}, n s^{2}$ f- block starts with $6 t h$ period $(n = 6)$

Q. They f-block elements of the periodic table contains those elements in which:

only 4f-orbitals are progressively filled in 6th period.

only 5f -orbitals are progressively filled in 7th period.

4f and 5f orbitals are progressively filled in 6th and 7th periods respectively.

none of these

Electronic configuration of f-block element (n−2)f1−14(n−1)d10,ns2 f- block starts with 6th period (n=6)

Electronic configuration of f-block element $(n - 2) f^{1 - 14} (n - 1) d^{10}, n s^{2}$ f- block starts with $6 t h$ period $(n = 6)$