00:01
Hi, let's see energy of an electron in each stable orbit.
00:04
So kinetic energy of electron, k equal to of m e v square and potential energy of electron, u equal to k into z e into minus e divided by r n.
00:18
That is equal to minus k z e square by r n.
00:25
The total energy is of m .e.
00:32
V square minus kze square by rn.
00:36
From bor's postulate velocity, we know that v.
00:42
Square equal to 1 by 4 pi epsilon not into ze square by mrn.
00:49
So e equal to of m .e into 1 by 4 pi epsilon not into z e square by m r n minus k z e square by r n.
01:06
So e equal to minus 1 by 4 pi epsilon not into z e square by 2 r n.
01:14
Let's take this is equation 1 and post radius r n.
01:19
Equal to epsilon knot n square head square by pi m e square z let's substitute r and in equation one so we have en equal to minus 1 by 4 pi epsilon not into z e square by 2 epsilon not n square head square into pi m e square into z from electron like hydrogen atom is z equal to 1 so we have en equal to minus m e power 4 by 8 epsilon 0 square head square n square we have ensprude the statement next when an electron transitioned from a higher energy lower energy state the photon emitted will have energy that is e .i minus ef equal to h, new, equal to hc by lambda...