Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Chapter 5 Vocabulary
Vocab
| Question | Answer |
|---|---|
| Electromagnetic radiation | is a form of energy that exhibits wavelike behavior as it travels through space |
| Wavelength | is the shortest distance between equivalent points on a continuous wave |
| Frequency | is the number of waves that pass a given point per second |
| Amplitude | is the wave's height from the origin to a crest, or from the origin to a trough |
| Electromagnetic spetrum | also called the EM spectrum, encompasses all forms of electromagnetic radiation, with only differences in the types of radiation being their frquencies and wavelengths |
| Quantum | is the minimum amount of energy that can be gained or lost by an atom |
| Planck's constant | has a value of 6.626x10^-34, where J is the symbol for the joule, the SI unit of energy |
| Photoelectric effect | electrons, called photoelectrons, are emitted from a metal's surface when light of a certain frequency shines on the surface |
| Photon | is a particle of electromagnetic radiation with no mass that carries a quantum of energy |
| Atomic emission spectrum | is a set of frequencies of the electromagnetic waves emitted by atoms of the element |
| Ground state | the lowest allowable energy state of an atom |
| de Brogile equation | predicts that all moving particles have wave characteristics |
| Heisenburg principle | states that it is fundamentally impossible to know precisely both the velocity and position of a particle at the same time |
| Quantum mechanical model of the atom | the atomic model in which electrons are treated as waves |
| atomic orbital | the three-dimensional region around the nucleus |
| Principal quantum numbers | indicate the relative sizes and energies of atomic orbitals |
| Principal energy levels | specifies the atoms majority energy level |
| Energy sublevels | a part of the principal energy levels |
| Electron configuration | the arrangement of electrons in an atom |
| Aufbau principle | states that each electron occupies the lowest energy orbital available |
| Pauli exclusion principle | states that a maximum of two electrons may occupy a single atomic orbital, but only if electrons have opposite spins |
| Hund's rule | states that single electrons with the same spin must occupy each equal-energy orbital before additional electrons with opposite spins can occupy the same orbitals |
| Valence electrons | are defined as electrons in the atoms outermost orbitals, generally those oritals associated with the atom's highest principle energy level |
| Electron-dot structure | consists of elements symbol, which represents the atomic nucleus and inner-level electrons surrounded by dots representing the atom's valence electrons |
Created by:
mitchellvontia
Popular Chemistry sets