CHM 1111 Chapter 6

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15 terms

wave

periodic oscillation that travels through space

wavelength

distance between two corresponding points on a wave -

frequency

the number of waves passing a given point per second

amplitude

vertical height of a wave from the midline. Proportional to energy.

speed

distance per unit time (m/s)

speed of light

3.00 x 10^8 m/s

quantum

smallest packet of energy. Akin to the atom for mass.

threshold frequency

frequency below which electrons are not ejected in the photoelectric effect

photon

quantum of light energy

emission spectrum

specific frequencies given off by excited atoms of individual elements

ground state

most stable arrangement for an atom

excited state

high-energy state

orbit

specific area in which an electron can exist

degenerate

having the same energy

valence electrons

outermost bonding electrons

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