Electromagnetism
Wave-Particle Duality
Bohr and Beyond
Quantum Numbers
Electron Configurations
100

This is the number of waves passing a point per unit time, measured in hertz.

Frequency

100

This scientist hypothesized that light was composed of particles called "corpuscles" and studied its reflection and refraction.

Sir Isaac Newton

100

In the Bohr model, when electrons absorb energy, they jump to a higher one of these, and emit light when falling back.

Energy level

100

This quantum number determines the shape of the orbital and is denoted as l, with values like 0 for s, 1 for p.

Angular momentum

100

This principle states that no two electrons in an atom can have the same set of four quantum numbers.

Pauli Exclusion Principle

200

This term refers to the length between two crests in a wave.

Wavelength

200

This English polymath showed the wave-like nature of light through his double-slit experiment in the early 1800s.

Thomas Young

200

This Danish physicist proposed a model of the atom where electrons orbit the nucleus at specific quantized energy levels.

Niels Bohr

200

This Danish physicist proposed a model of the atom where electrons orbit the nucleus at specific quantized energy levels.

Principal

200

This principle states that electrons occupy the lowest-energy orbital available.

Aufbau Principle

300

What is the value of c, the speed of light?

3 x 108 m/s

300

This German physicist introduced the idea of energy quanta to explain blackbody radiation, founding quantum theory.

Max Planck

300

This principle states that it's impossible to precisely know both the position and momentum of a particle simultaneously.

Heisenberg Uncertainty Principle

300

This quantum number describes the spin of an electron, with possible values of +1/2 or -1/2.

Spin
300

What is the electron-configuration notation for fluorine?

1s2 2s2 2p5

400

This equation relates the speed of light to wavelength and frequency: c = λv.

Wave equation for light

400

This effect, where light ejects electrons from a surface, was explained by hypothesizing light as particles called photons.

Photoelectric effect

400

This diagram illustrates the possible energy transitions for electrons in an atom, leading to emission or absorption spectra.

Energy-state diagram

400

This quantum number specifies the orientation of the orbital in space.

Magnetic

400

This rule states that electrons will occupy orbitals singly with parallel spins before pairing up in orbitals of equal energy.

Hund's rule of maximum multiplicity

500

This encompasses all possible wavelengths of electromagnetic radiation, from radio waves to gamma rays.

Electromagnetic spectrum

500

This French physicist proposed the equation λ = h/p to describe the wave nature of particles.

Louis de Broglie

500

This Austrian physicist developed a wave equation that mathematically describes the behavior of electrons as waves in atoms.

Erwin Schrödinger

500

The p orbital can hold this maximum number of electrons, distributed across three orbitals.

6

500

What is the noble gas configuration for copper?

[Ar] 3d10 4s1