Question

Findout the maximum number of electrons in outermost shell for s,p,d,f block elements.

Answer 1

Answer:

2,8,2,2

Explanation:

The trick is in the language of question, actually it asks for electrons in outermost shell.

the common configuration for a d-block and f-block elements says that the outermost shell contains just an s orbital. the d-orbital is present in penultimate shell and f in anti penultimate.

But the case is not so in p block, the outermost shell otself has p orbital.

Hope you understood!

Answer 2

Answer:

s-block : 2 electrons

p-block : 6 electrons

d-block : 10 electrons

f-block : 14 electrons

Explanation:

S, p, d and f blocks are groups of elements in the periodic table with their a definite subshell.

S,p,d and f are subshells. Each subshell contains a number of orbitals.

Orbitals are spaces around the nucleus that have high probability of electrons. Each orbitals can contain a maximum of only 2 electrons.

S block elements have one orbital. Therefore maximum electrons contained in it is 2 electrons.

P block elements have three orbitals. Therefore maximum electrons contained in it is 6 electrons.

D block elements have 5 orbitals. Therefore maximum electrons contained in it is 10 electrons.

F block elements have seven orbitals. Therefore maximum electrons contained in it is 14 electrons.