Question | Answer |
electromagnetic radiation | is a form of energy that exihibits wavelike behavior as it travels through space. |
wavelength | is the shortest distance between equivalent points on a continous wave |
frequency | is the number of waves that a pass a given point per second |
amplitude | is the wave is the wave's height from the origin to a crest |
electromagnetic spectrum | also called the EM spectrum, encompasses all forms of electromagnetic radiation, with the only differences in the types of radiation being their frequencies and wavelengths |
quantam | is the minmum amount of energy that can be gained or lost by an atom |
planck's constant | has a value of 6.626*10-34J*s, where J is the symbol for the joule, the SI unit of energy |
photoeletric effect | a phenomenom in which 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 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 |
Heisnberg uncertainty 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 | an atomic model in which electrons are treated as waves; also called the wave mechanical model of the alom |
atomic orbital | describes the electons probable location |
principal quantum numbers | that indicate the relative sizes and energies of atomic orbitals |
principal energy levels | the major energy levels |