Question

describe F block elements inner transition elements❤❤❤❤​

Answer 1

Answer:

the s block elements are lanthanides and actinides and are called inner transition elements because of their placement in periodic table due to their electronic configuration.

the f orbitals of the electron shell are filled with "n-2".

there is a maximum of 14 electrons which can be held by f orbital

for any more help in Physics and Chemistry till class eleventh follow me and ask the question and I will answer you for shure

if possible then please do one more thing for me.

please inbox me

Answer 2

Answer:

Explanation:

(i) Elements placed in two separate rows at the

bottom of the periodic table are called inner

transition elements.

(ii) They include two series of elements: Lanthanide

series and Actinide series. They belong to f-block

elements of Modern Periodic table.

(iii) 14 elements with atomic number 58 to 71

(Cerium to Lutetium) are called lanthanides.

These elements are placed along with lanthanum

(La = 57) in group 3 and period 6 because of very

close resemblance in properties between them.

(iv) 14 elements with atomic number 90 to 103

(Thorium to Lawrencium) are called actinides.

These elements are placed along with actinium

(Ac = 89) in group 3 and period 7 because of very

close resemblance in their properties.

(v) They have last three shells incompletely filled.