Question

The total energy of electron in an atom is combination of potential energy and kinetic energy. if total energy is - e for an electron in atom then its ke and pe respectively are

Answer 1

Soft metals like Pottasium & Sodiumare niether ductile nor malleable, so asliquid metal Mercury. Again brittlemetals are niether of the two like Cast Iron(general one). Gold is the most ductile & malleable of all know metals. Again Lead is a metal which is malleable but not ductile.

Answer 2

Answer:

k=e^2/2r      p=-e^2/r

=1/2 : 1

therefore k=1/2 of p

k=1/2p :  p

Your Answer : total energy = -2(given)

2e - - e

=2e , e

Explanation:

pls mark brainest