| What is an Energy Level? | -This is simply a Shell, that is a Distance away from the Nucleus |
| How can the Electrons move up and down the Energy Levels? | -The Electrons can move up One of More Energy Levels IF it Absorbs the Right Amount of EM Radiation [Energy]
-The Electron can also Fall Back to its Energy Level it started with, which can result in Energy being Transferred Away [Same Amount that it Absorbed] |
| How can an Atom be Ionised due to Energy Absorption? | -If an Outer Electron gains enough Energy, it can Move So Far that it just Leaves the Atom, making it a Free Electron
-This makes the Atom now a Positive Ion, due to the Imbalance of Protons to Electrons |
| Which, out of Alpha, Beta and Gamma, is the most Ionising? | -Alpha has the Highest Ionisation Power, meaning it can't Travel very Far without Hitting an Electron and Ionising it therefore |
| What do Florescent Tubes do to make Light? | -Fluorescent Tubes contain Mercury Vapour
-Electrons are Accelerated through the Vapour, which Ionises some of the Mercury Atoms making more Free Electrons
-When the Free Electrons Collide with Electrons in Mercury Atoms, it gets Excited to Higher Energy Levels
-When they decide to drop Down, it emits UV Radiation
-Then there is a Compound called Phosphor which simply Absorbs it, Has its Electrons become Excited, which will then therefore emit Visible Light in the EM Spectrum |
