Electron energy levels (Edexcel GCSE Physics Combined Science): Flashcards
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15 cards from this deck
Energy levels (shells) in an atom
Energy levels (shells) in an atom
Specific regions around nucleus where electrons exist
Where can electrons exist within energy levels?
Where can electrons exist within energy levels?
Only at specific levels, not in between
Energy of levels closer to nucleus
Energy of levels closer to nucleus
Lower in energy
Energy of levels further from nucleus
Energy of levels further from nucleus
Higher energy
What's absorbed when electron moves up
What's absorbed when electron moves up
Electromagnetic radiation
Excited electron meaning
Excited electron meaning
Electron at higher energy level (further from nucleus)
What's released when electron moves down
What's released when electron moves down
Electromagnetic radiation (energy)
Ionisation definition
Ionisation definition
When an atom loses an electron
Free electron definition
Free electron definition
Electron that has completely left the atom
Charge of an ionised atom
Charge of an ionised atom
Positively charged
Ionising radiation definition
Ionising radiation definition
Radiation that knocks electrons out of atoms
Examples of ionising radiation
Examples of ionising radiation
Alpha particles, beta particles, gamma rays
How energy level spacing changes further from nucleus
How energy level spacing changes further from nucleus
Get closer together
Relationship: energy difference & frequency
Relationship: energy difference & frequency
Higher frequency of radiation emitted
High frequency radiation types
High frequency radiation types
Ultraviolet or X-rays