P6.1.5 - Radiation in and out of atoms Flashcards
1
Q
What is a photon?
A
A ‘packet’ of electromagnetic radiation, how radiation is emitted or absorbed
2
Q
What happens when an electron gets excited?
A
It moves from a lower to higher level
3
Q
What is an absorption spectrum?
A
A continuous spectrum with dark lines corresponding to particular frequencies being absorbed by an atom
4
Q
What is an emission spectrum?
A
A set of frequencies of radiation emitted by an atom when excited electrons move to lower energy levels
