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chapter 5 -1
Question | Answer |
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electromagnetic radiation | a form of energy that exhibits wavelike behavior as it travels through space. |
wavelength | the shortest distance between equivalent points on a continous wave. |
frequency | the number of waves that pass a given point per second. |
amplitude | the waves height from the origin to a crest, or from the origin to the trough. |
electromagnetic spectrum | encompasses all forms of electromagnetic radiation, with the only differences in the 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 | h, which has a value of 6.626 X 10^-34 j*s, where j is the symbol for the joule. |
photoelectric effect | electrons are emitted from a metal's surface when light of a certain frequency shines on a surface. |
photon | a particle of electromagnetic radiation with no mass that carries a quantum of energy. |
atom emission spectrum | 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 Broglie equation | predicts that all moving particles have wave characteristics. |
heisenberg uncertainty principle | it is fundamentally impossible to know precisely both the velocity and position of a particle at the same time. |
atomic orbital | a 3D region around the nucleus |
principal energy levels | atoms major energy levels |
principal quantum numbers | which the quantum mechanical model assigns to indicate the relative sizes and energies of atomic orbitals. |
energy sublevel | the energy levels contained within a principal energy level. |