Chapter 6 Flashcards
Electromagnetic radiation is
Everywhere and is eneergy that travels in a continuous wavelike manner
Visible spectrum goes in order from left to right of
Rainbow backwards
All emr travels at
The speed of light (3.0 * 10^8 m/s)
Wavelength and frequency (v) are
Inversely related
Order of spectrum
Gammaray➡️xray➡️uv➡️visual➡️infared➡️microwave➡️fm➡️am➡️long radio waves
Frequency times wavelength equals
Speed of light
1m=
1*10^9 nm
Max plank proposed that
Atoms could only absorb(or release) energy in discrete chucks Called quantum
A quantum of light energy is
A photon
He also proposed that energy could be calculated by:
E=h*v
Planks constant
6.63*10^-34
When atoms absorb energy
They produce unique spectral lines
High density and hot matter produce
Continuous spectrum (white light)
Hot gas produces
Emission spectrum
Cold gas produces
Absorption spectrum
Neil’s Bohr showed that spectral lines are caused by
quantized jumps of electrons between energy levels