Quantum Flashcards
Wavelength and frequency are _______ related.
inversely
All __________ waves, including visible light, travel at the speed of light, or ____________ m/s.
electromagnetic, 3.00 * 10^8 m/s
Atomic emission spectrum of an element
The set of frequencies of the electromagnetic waves emitted by atoms of the element
The distinct wavelengths that appear on hydrogen’s emission spectra are explained by ________
the different energy levels of hydrogen’s electrons
Describe the 4 quantum numbers.
PQN, SQN, m(sub)l, m(sub)s
Aufbau principle
Electrons are added to the orbitals of lowest energy first
Puali’s exclusion principle
Each orbital within a subshell can accommodate no more than two electrons and these electrons must have opposite spins
Hund’s principle
When electrons occupy orbitals of equal energy, one electron enters each orbital until all the orbitals contain one electron with parallel spins
Heisenberg’s uncertainty principle
You can never know the position and momentum of a particle at a given time
Total number of electrons within a given energy level is ____
2n^2
_____ notation and _____ notation follow the aufbau sequence, while ____ notation does not
Box, noble gas, spectroscopic
In 1900, Planck stated that there is a concept called a quantum, which is _______
a minimum quantity of energy that can be emitted at any time and it exists in small, measurable packets
After hearing Planck’s Quantum Theory, Bohr proposed that electrons maintain a __________ when they move around the nucleus.
energy level
de Broglie suggested that ________
If electromagnetic waves can behave as particles, then moving particles can have wave properties
Shape of s orbital
spherical
