How lines of spectra is obtained

Question 1

1.

Answer 1

The electron of a hydrogen atom for example can have many energy values
-Normally the electron will occupy the lowest energy state which is the ground state

Question 2

2.

Answer 2

However if the electron absorb energy from heating or collision with another electron it may be promoted to a higher energy level
It must have the right amount of energy to be able to be promoted

Question 3

3

Answer 3

This promotion will send the electron in an exited state , however the electron is unstable an d will send the electron to a lower level. In this process of returning the electron will have to lose energy which is emitting a photon of electromagnetic radiation

Question 4

4.

Answer 4

This movement of electron between energy level are called transition
- Each of this transition results in an emission of a photon with a particular wavelength which produce a line spectra

Question 5

5.

Answer 5

Downward transition will result in emission

Upward transition will reusult in Absorbtion