Shared Flashcard Set

Details

Chapter 5
Light and Quantized Energy
16
Science
9th Grade
10/20/2012

Additional Science Flashcards

 


 

Cards

Term
electromagnetic radiation
Definition
form of energy that exhibits wavelike behavior as it travels through space, i.e. microwaves, x-rays, waves that carry radio and television signals
Term
wavelength
Definition
the shortest distance between equivalent points on a continuous wave (usually expressed in meters, centimenters, nanometers
Term
frequency
Definition
the number of waves that pass a given point per second (expressed with units of waves per second)
Term
amplitude
Definition
a wave's height from the origin to the crest
Term
electromagnetic spectrum
Definition
includes all forms of electomagnetic radiation (EM spectrum)
Term
quantum
Definition
the minimum amount of energy that can be gained or lost by an atom
Term
photoelectric effect
Definition
an effect where electrons, called photoelectrons, are emitted from a metal's surface when light of a certain frequency, or higher than a certain frequency, shines on a surface
Term
photon
Definition
massless particle that carries a quantum of energy
Term
atomic emission spectrum
Definition
a set of frequencies of the electromagnetic waves emitted by atoms of an element
Term
ground state
Definition
lowest allowable energy state of an atom
Term
quantum number
Definition
number the Bohr assigned to each orbit of an atom
Term
atoic orbital
Definition
three dimensional region around the nucleus
Term
electron configuration
Definition
arrangement of electrons in an atom
Term
Hund's rule
Definition
single electrons with the same spin must occu;py each equal-energy orbital
Term
valence electrons
Definition
electrons in an atom's outermost orbital
Term
electron-dot structure
Definition
consists of the element's symbol surrrounded by dots representing all of the atom's valence electrons
Supporting users have an ad free experience!