Question

difference between lanthanoids and actinoids​

Answer 1

Answer:

Lanthanides belong to 6th period

Actinides belong to 7th period

Answer 2

Answer:

♥️f-block elements :-

❤️The elements in which the differentiating electrons enters into ( n - 2 ) f subshell are called " f " block elements .

❤️Their general electronic configuration is (n-2)f-1-14 , (n-1)d-1-10 , ns-1-2 .

❤️There are two series of f-block elements .

❤️❤️The first series is from Z = 58 - 71

❤️❤️The ll series is from Z = 90 - 103 .

❤️The first series elements are called " Lanthanides "

❤️The second series elements are called " Actinoids " .

❤️ They are writing seperately at the bottom of the periodic table .

❤️ Lanthanides present in 6th period

❤️ Actinoids present in 7th period .

Explanation:

♥️ RUDEDOLL