Electron Theory Unity Flashcards
As a wavelength of a photon increases, the frequency will ______ and the energy of the photon will ______.
decrease; decease
What is the Uncertainty Principle and who created it?
Werner Heisenberg;
It is impossible to know precisely both the position and momentum of an electron without changing them
What is the electron wave theory and who stated it?
Louis de Broglie;
electrons can exhibit wavelike properties
What is the Quantum Probability Theory and who created it?
Schrodinger;
to be able to use variable/numbers to predict the motion and location of electrons in an atom
Who is Niels Bohr and what did he do?
main contributor to the planetary model of hydrogen; theorized that electrons move around the nucleus in circular rings called energy levels - the bohr model
What did Thomas Young propose?
proposed that light could be waves of particles
What did Friedrich Hund say?
electrons must be spread out into empty orbitals to maintain the lowest possible energy state
What is the Pauli Principle?
created the idea of a spin quantum number due to the fact that every electron in an atom must have a unique set of 4 quantum numbers
Max Planck
proved that light was comprised of particles that he called photons
What is the principal quantum number?
determines the distance of an electron from the nucleus
What is an orbital?
another word for the orientation of motion of electrons
What is the Azimuthal Quantum Number?
determines the type of shape of path of an electron
What is the subshell?
another word for the shape of the path of an electron
