Question

Why electron not jumps in nucleus

Answer 1

the electrons cannot just be hanging above the nucleus. They must be moving. Yes, circular motion, just as the planets do around the sun. This circular motion protects the planets against falling into the Sun.

Answer 2

Hlooo mate .…………

Here is your answer.

ELECTRONS are negatively charged species and
NUCLEUS consist of PROTONS(positively charged species) and NEUTRONS (uncharged species.)

And we know unlike charges ATTRACT.

BUT due to which electrons moves in attractive force shells.

and do not jump into because of loose bonding of last most shell and most importantly

CIRCULAR ORBITAL MOVEMENT

i think its correct