Atomic Spectra and Quantum Mechanics Overview

Atomic Spectrum

Characteristic colors emitted by heated substances.

Emission Spectrum

Light emitted by substances at specific wavelengths.

Absorption Spectrum

Wavelengths absorbed by a substance, creating dark lines.

Planck's Constant

h = 6.626 x 10^-34 J s, quantizes light energy.

Quantum Mechanics

Study of particles exhibiting wave-particle duality.

Bohr's Model

Electrons orbit nucleus in quantized energy levels.

Photon

Light quantum with energy E = hf.

Blackbody Radiator

Ideal emitter of continuous electromagnetic radiation.

Wavelength

Distance between successive peaks of a wave.

Ultraviolet Light

High-energy light that can ionize organic molecules.

Melanin

Dark pigment produced in response to sunlight.

Sunscreen Ingredients

Chemical filters like oxybenzone protect against UV.

Tungsten Filament

Source of white light containing all colors.

Hydrogen Spectrum

Distinct emission lines from hydrogen atom.

Electromagnetic Waves

Radiation emitted by charged particles.

Energy Levels

Specific orbits where electrons can exist.

Ionization

Process of removing electrons from atoms.

Sunburn

Skin damage from excessive UV exposure.

Chemical Filters

Substances in sunscreens that absorb UV radiation.

Discrete Chunks

Light energy absorbed or emitted in quantized amounts.

Solar System Model

Outdated analogy for electron arrangement in atoms.

Northern Europeans

Typically have less melanin, lighter skin.