Excitation, Ionisation And Energy Levels

Question 1

What is the conversion rate to change from one MEV to Joule?

Answer 1

x 1.6x10^-13

Question 2

What is it called when an electron changes from one energy level to another?

Answer 2

A transition

Question 3

How can electrons get the energy to move up to higher energy level

Answer 3

It could collide with another electron

It could absorb a photon of the exact energy required

Question 4

What happens when an electron moves down an energy energy level?

Answer 4

It releases the exact amount of energy when making the transition

It releases this energy energy as a photon of equal energy to the energy it loses

Question 5

What is the energy of a photon released as a electron moves down in energy level?

Answer 5

Change in E=E1-E2=hf

Question 6

What is excitation?

Answer 6

When an electron gains the exact amount of energy to move up one or more energy levels

Question 7

What is de-excitation?

Answer 7

When an electron gives out the exact amount of energy to move back down to its original energy level

Question 8

Why do the ground state and energy levels have negative values of energy?

Answer 8

This is because they are compared to the ionisation level

Question 9

What is a line spectra?

Answer 9

Atoms of the same element have the same energy levels

Each transition releases a photon with a set amount of energy meaning the frequency and wavelength are also set

The wavelength of light is responsible for its colour

We can analyse the light by using diffraction grading to separate light into colours that make it up