Schrodinger - Study guides, Revision notes & Summaries

CLEP Chemistry Latest Update Graded A John Dalton Proposed that matter is composed of atoms; these atoms have different identities called elements, which combine to form compounds; measured masses of reactants and products. J.J. Thompson Observed deflection of particles in a cathode ray tube; proposed that atoms are composed of positive and negative charges; developed the plum pudding model of the atom Robert Millikan Calculated the charge-to-mass ratio of electrons using oil drops falling in ...

IB Chemistry Unit 2 SL Latest Version Rated A+ Emission spectrum An emission spectrum is produced when an atom moves from a higher to a lower level. The line emission spectrum of hydrogen provides evidence for __________________ which converge at _____________ The line emission spectrum of hydrogen provides evidence for the existence of electrons in discrete energy levels which converge at higher energies. Continuous spectrum All the colours / wavelengths present merge smoothly in...

Schrodinger (1925) Continued upon Bohr's findings to determine where electrons are typically found. Heisenberg (1927) Created the heisenberg uncertainty principle because you never can predict where the electron is. (Breaking Bad) De Broglie (1924) Electrons act like waves around the atom. Niels Bohr (Bohrbit) (1913) Electrons can orbit the nucleus in certain special orbits at different energy levels around the nucleus. Earnest Rutherford (foil) (1910) Fired beam of alpha particles ...

Organic chemistry correct answers Chemistry of compounds which contain carbon Why are organic compounds central to the structure of living organisms? correct answers Organic compounds make up nucleic acids, amino acids, etc. Compounds correct answers 2 or more elements chemically combined Elements correct answers A molecule composed of one kind of atom; cannot be broken into simpler units by chemical reactions. Atoms correct answers Basic unit of matter which contains a nucleus and i...

Quantum Mechanics Already Graded A+ Max Planck : German physicist who solved the problem of why different wave lengths are emitted at different temperatures- proposed that the energy absorbed or emitted by an object could only occur in "pieces"- which he called quantum Wener Heisenberg : German theoretical physicist- published his theory on quantum mechanics when he was 23- concluded that it is impossible to make a measurement on an object without disturbing the object Albert...

Quantum Mechanics History Planck ️Energy is discontinuous, quantum Einstein ️Light is both a wave and particle(Photoelectric effect) Bohr ️Bohr Model of Atom, electrons move in fixed orbits around nucleus, energy levels are quantized DeBroglie ️Matter is both a particle and a wave Heisenberg ️Uncertainty Principle:Can't know both location and velocity of a particle. Schrodinger ️Wave functions, orbitals, and quantum mechanical model

Describe the relationship between the frequency, wavelength, and velocity (speed) of a wave. - AnswerThe more times the wave is passing through a point in space = a higher frequency, the higher frequency creates a smaller wavelength, which is why the smallest wave is a gamma wave, it has the highest frequency and the shortest distance between waves, the velocity can be measured in m/s and is composed of frequency and wavelength Calculate any one (frequency, wavelength, or velocity) given the...

Chemistry Chapter 5 Quantum Mechanics Who developed the idea of electron energy levels? Niels Bohr What two conclusions did Bihr come to? 1: an electron can only move a certain distance from the nucleus 2: an electron can only move at a certain speed Schrodinger, Heisinberg, and de Broglie developed a theory th at stated... The motion of an electron is not a definite path. You cannot determine it's position and it's momentum. Space Orbital The highly probable location of an ...

Quantum Physics Complete Guide Photon Particle of light Intensity + Formula Power per unit area I = P/A Units: W/m² The Photoelectric Effect The emmision of electrons from a metal when electromagnetic radiation of high enough frequency falls on the surface. Threshold Frequency (f₀) Minimum frequency of light needed to eject electrons fromt he surface of the metal Classical Theory Light acts as a wave and the energy of a wave depends on its amplitude (intensity) not its fre...

Which of the following may be described as a saturated hydrocarbon? a) octane b) pentene c) hexyne d) trans-butene - Answer- a Which of the following is the reason for the non-polar nature of alkanes? a) similar electronegativity of the carbon and hydrogen atoms b) saturated carbon bonds c) carbon atoms have a stronger pull on electrons than hydrogen atoms d) hydrogen repel polar functional groups - Answer- a The Montreal Protocol is an international treaty that successfully reduce...