1.2- Quantum Model Flashcards
What is blackbody radiation?
Heated to incadescence/glowing as it is emitting radiant energy
Why do heated black bodies turn white/yellowlglow ?
Higher the tempurature the more emissions of visible light (yellow)
What happens to energy as tempurature increases?
Energy of emitted light should increase continuously
T/F: matter could absorbor emitted in any quantity of energy
True
How is light distributed ?
All throughout infrared visible , ultraviolet
Correlation between tempurature and frequency
Higher the tempuratue the higher the frequency
What did max planck ‘s hypothesis
Matter at the atomic level can absorb or emit only discrete quantities of energy
Light emitted by a hot solid is quantized
In what unit is light emitted
Light is emitlel by hot solid and in bursts and quanta
Define: quanta
Very small packets of energy
What is plank’s conclusion?
Ehergy of an atom is quantized
Can light energy be quantized
Yes, light energyis quantized
How does energy travel?
In waves as photons
What is the photoelectric effect?
As photons hit a metal if there is a high enough frequency an electron will be emitted but if there was not frequent enough no electronwould be emitted
How does an electron change energy levels?
Energy is emitted and absorbed to satisfy the difference between levels
Different between ground and excited state
Ground state: where electrons are usually found with least energy
Excited state: more energetic
