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Chima Sunday (Tutor)
24-02-2016 11:55:00 +0000
Good day all
Today we will be tutoring on Energy Quantization. The concept of Energy Quantization is the most fundamental in the study of modern Physics, it is often tested in JAMB and other exams. so lets take a quick look into this topics.
In 1910, Rutherford told us that the J.J Thompson model of the atom was wrong by coming up with his heavy central positively nucleus with electron circling around it. But since he said that the nucleus is positive, electron negative, so coulombs force should push the electron inside the nucleus. But this do not happen. That was the doom of Rutherford until Niels Bohr stepped in 1913 to tell him that look o, this electrons you are talking about circles the nucleus in a discrete energy level called quantum level. Actually Neils Bohr borrowed this idea from Max Planck theory of 1900 of photons quantization.
This Energy level is given thus
En = nhf
n = quantum numbers. n = 1,2,3,........
h = planck constant = 6.6*10-34J.s
f = frquency of the orbiting electron.
recall that from waves that velocity = frequency times wavelength.
then f = c/ λ
so En = nhc/λ
c = speed of light
lahmda(λ) = wavelength.
**Note that this session begins from 3:00 - 4:00pm. Before the session begins, you can put down your questions on paper and then ask them when the session officially begins by 3:00pm on any area in physics while giving more consideration on the above topic.
This session has ended
Thanks to every one that participated especially @Femmy Adewale a big thanks to you.