Flashcards for:
Key Equations of Atomic Theory

Wavelengths in atomic scales are often measured in nanometers (1 nm = 1 × 10^-9 m), important for calculations involving electromagnetic spectra.

ν = E / h, where E is the energy calculated from the energy emission formula, and h is Planck's constant.

Electrons (mass: 9.11 × 10^-31 kg) are much lighter than protons (mass: 1.6726 × 10^-27 kg), affecting the behavior of atoms in terms of energy levels and electron clouds.

1 electron volt = 1.62 × 10^-19 J. It's crucial for converting energy measurements in atomic-level processes to the standard SI unit.

E = -2.178 × 10^-18 (1/n_f^2 - 1/n_i^2), where n_f is the final energy level, and n_i is the initial energy level.

KE = E_photon - φ, where E_photon = hν and φ is the threshold energy. KE is the kinetic energy of the ejected electrons.

p = h / λ, where p is momentum, h is Planck's constant, and λ is the wavelength.

E = hc / λ, where E is the energy, h is Planck's constant, c is the speed of light, and λ is the wavelength.

λ_max = hc / φ, where λ_max is the maximum wavelength, h is Planck's constant, c is the speed of light, and φ is the work function.

λ = hc / E, where λ is the wavelength, h is Planck's constant, c is the speed of light, and E is the photon's energy.

The speed of light in a vacuum is 3 × 10^8 m/s, represented by the letter c.

E = hν, where E is energy, ν is frequency, and h is Planck's constant, 6.626 × 10^-34 J·s.

λ = c / ν, where λ is the wavelength, c is the speed of light, and ν is the frequency.

λ = h / mv, where λ is the wavelength, h is Planck's constant, m is the mass, and v is the velocity of the particle.

500 nm = 500 × 10^-9 meters.