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Electrons in Atoms
Electrons in Atoms 5.1 and 5.2
Question | Answer |
---|---|
electromagnetic radiation | a form of energy that exhibits wavelike behavior as it travels through space. |
wavelength | the shortest distance between equivalent points on a contiuous wave. |
frequency | the number of waves that pass a given point per second. |
amplitude | the wave's height from origin to a crest, or from the origin to a trough. |
electromagnetic spectrum | oncompasses all forms of electromagnetic radiation, with the only differences in types of radiation being their frequencies and wavelengths. |
quantum | the minimum amount of energy that can be gained or lost by an atom. |
Planck's constant | has a value of 6.626 x 10^-34J * s, where J is the symbol for joules, the SI unit of energy. |
photoelectric effect | photoelectrons are emitted from a metals surface when lighht of a certain frequency shines on the surface. |
photon | a partticle of electromagnetic radiation with no mass that carries a quantum of energy. |
atomic emission spectrum | the set of frequencies of the electromagnetic weaves emitted by atoms of the element. |
ground state | lowest allowable energy state of an atom |
de Broglie equation | pedicts that all moving particles have wave characteristics. |
Heisenberg uncertainly principle | states that if 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 atom |
atomic orbital | |
principal quantum number | |
energy sublevel |