Quantum Mechanics And Periodicity

Question 1

Wave

Answer 1

A wave is an oscillation or periodic movement that can transport energy from one point in space to another.

Question 2

Waves are characterised by

Answer 2

A wavelength, frequency and amplitude.

Question 3

How is wavelength and frequency related?

Answer 3

The product of a wave’s wavelength and frequency is the speed of the wave. Wavelength and frequency are inversely proportional.

Question 4

From smallest to largest wavelength, the electromagnetic spectrum.

Answer 4

Gamma, X-ray, ultraviolet, infrared, tetrahertz, microwave, broadcast and wireless radio.

Question 5

Possible energies of a vibrating atom are limited to certain values or quanta to the equation:

Answer 5

E = nhv, where n = 1, 2, 3 … etc
h is Planck’s constant

Question 6

Bone’s atomic model

Answer 6

An atom consists of small, positively charged nucleus around which electrons revolve in definite circular paths called orbits
These orbits are associated with definite energies called energy shells.
As long as the electron remains in a particular energy shell, its energy remains constant
Only those orbits are permitted in which angular momentum of the electron is a whole number multiple of h/2pi where h is Planck’s constant.