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39 Cards in this Set

  • Front
  • Back
Anything that has both mass and volume
matter
A homogeneous mixture in which one substance is dissolved in another substance
solution
A process whereby one substance is transformed into another substance with new and different properties
chemical change
A phase of matter in which the substance has a definite volume and a definite shape
solid
A characteristic of a substance which is not dependent uponthe amount of matter present
intensive property
A pure substance composed of two or more elements chemically combined
compound
The quantity of matter in a substance
mass
A substance composed of only one type of atom
element
A change in the size, shape, or state of substance
physical change
A phase of matter in which the substance has no definite shape, but a definite volume
liquid
solid to gas
sublimation
standard unit of the metric system
kilogram
standard unit of length in the metric system
meter
the negative electrode of an electrical source
cathode
atoms of the same element with different numbers of neutrons
isotope
The positive electrode of a voltage source
anode
number of protons in an atom
atomic number
The lowest energy state possible for an electron
ground state
set of 4 numbers which describe the energy or behavior of an electron
quantum number
The study of substances exposed to some sort of continuous, exciting energy
spectroscopy
A distinct pocket or quanta of radiant energy
photon
The space occupied by the electron in an atom
electron cloud
An energy subdivision of an energy level
sublevel
Unit of frequency equal to one cycle or wavelength per second
hertz
The space designated by the thirdquantum number that describes electrons with the same energy level, sublevel, and spatial orientation.
orbital
Theory which says that electrons have properties of both particles and waves
wave-particle duality
the distance between 2 corresponding poiints on a wave, represented by "lambda"
wavelength
Theory that says no two electrons can have the same set of quantum numbers
Pauli exclusion principle
Number of complete wave cycles per unit of time
frequency
Number that describes the energy level of an electron or the size of the electron cloud
principle quantum number
A description of the arrangement of the electrons in an atom
electron configuration
Theory that says that radiant energy is transferred in discreet units, called quanta
quantum theory
The principal quantum number best describes the....
size of the electron cloud
The maximum number of electrons in an energy level is.......
72
a pictorial arrangement of the elements based upon their atomic numbers and electron configurations
periodic table
The attraction of an atom for an electron
electron affinity
An element that has both properties of metals and non-metals
metalloid
Elements within a group have
same number of energy levels
An element with 7 electrons in the outer energy level would be a
transition element