Question | Answer |
electromagnetic radiation | is a form of energy that exhibits wavelike behavior as it travels space. |
wavelength | the length, frenquency, amplitude, and speed. |
frenquency | 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 spectrum | encompasses all forms of electomagnetic radiation |
quantum | is the minimum amount of energy that can be gained or lost |
planck's constant | has the value of 6.626x10^-34 J*s where j is the symbol for joule the SI unit of energy |
photoelectric effect | photoeletrons are emitted from a metal 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 an element is the 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. |
Heisenberg uncertainty | 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 | three dimensional region around the nucleus describes the electron's probable location |
principla quantum numbers | indicate the relative sizes and energies of atomic orbitals. |
principal energy levels | n specifies the atoms major energy levels |
energy sublevels | part of energy levels |
electron configuration | 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 electronsmay occupy a single atomic orbital. |
hunds rule | states that a singleelectrons with the same spinmust occupyeach equal energy orbital before additional electrons with opposite spins can occupy same orbitals |
electron dot structure | consists of the elements symbol which represents the atomic nucleus and inner level electrons surrounded by dots representing the atoms valence electrons |