Chemistry- Electrons in Atoms

Electromagnetic Radiation

a form of energy that exhibits wavelike behavior as it travels through space

Wavelength

the shortest distance between equivalent points on a continuous wave

Frequency

the number of waves that pass through a given point per second

Amplitude

the height of a wave from the origin to a crest

Electromagnetic Spectrum

all forms of electromagnetic radiation

Quantum

the minimum amount of energy that can gained or lost by an atom

Planck’s constant

value used to determine the energy of a quantum

Photoelectric Effect

phenomenon where electrons are emitted from a metal’s surface when light of a certain frequency shines on the surface

Photon

a particle of electromagnetic radiation with no mass that carries a quantum of energy

Atomic Emission Spectrum

set of frequencies of electromagnetic waves emitted by atoms of an element

More wavelengths, frequency, amplitude, and speed have a _______ Wavelength

Higher Wavelength

Less wavelengths, frequency, amplitude, and speed have a _______ Wavelength

Lower Wavelength

Ground State

The lowest allowable energy state of an atom

Quantum Number

Number assigned to each orbit of an electron

De Broglie Equation

predicts that all moving particles have wave characteristics