CHEM 111 Lecture Notes - Quantum Mechanics, Wave Function, Magnetic Quantum Number
Document Summary
Can access 9 pm tonight through 6 pm friday. All matter shows wave properties de broglie wavelength is calculated using the following: = wavelength h = planck"s constant m = mass of the object (in kg) u = speed of the object (in m/s) So, h = j * s = kg * m2 / s. Becomes impossible to know both speed and location. Uncertainty principle results: x*m u h / 4 . U = uncertainty in speed m = mass (in kg) h = planck"s constant (in kg*m2 / s) How accurately can an umpire know the position of a baseball (m = 0. 142 kg) moving at. X 6. 626 x 10-34 kg*m2/s / 0. 142 kg * 0. 447 m/s * 4 8. 31 x 10-34 m. Relatively new field: developed out of the particle wave duality and heisenberg"s uncertainty principle. Makes statements about wave like objects at the atomic level whose positions are impossible to know exactly.
