6.1: Electronic Structure of Atoms

LIGHT

*Waves
*Particles (Photons)

WAVE NATURE OF LIGHT

λ = Wavelength (nm) = Distance between identical points on a wave.

ν = Frequency (s⁻') = Number of waves passing a given point per second.

a = Amplitude (m) = Size/volume

LIGHT SPECTRUM

RED ORANGE YELLOW GREEN BLUE INDIGO VIOLET

RED: Cool -> infrared

VIOLET: Hot -> Ultraviolet

PARTICLE (PHOTON) NATURE OF LIGHT

Photoelectric effect: shinning light striking a metal surface, does not work as a wave anymore but as a particle, called photons.

Exact amount of energy: Quantized energy, quanta photon.

E = Energy (J) = Plank's constant * Frequency

                         = Plank's constant * (speed of light/Wavelength)

                         = 6.626 x 10⁻³⁴ * (3.00 x 10⁸ ms / λ)