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Chem. Vocab. 301-325
| Question | Answer |
|---|---|
| Nonelectrolyte | a substance whose water solution does not conduct an electric current appreciably. |
| Non-metal | one of a class of elements which are usually poor conductors of heat and electricity and are electronegative. |
| Nonpolar Covalent Bond | a bond in which there is essentially equal attraction for the shared electrons and a resulting balanced distribution of charge. |
| Normal Solution | a solutions containing one gram equivalent of solute per liter of sloution. |
| Normality | the concentration of a solution expressed in gram-equivalents of solute per liter of solution. |
| Nuclear Change | formation of a new substance through changes in the identity of the atoms involved. |
| Nuclear Disintegration | the omission of a proton or neutron from a nucleus as a result of bombarding the nucleus with alpha particles, protons, deuterms, neutrons, etc. |
| Nuclear Equation | an equation representing changes in the nuclei of atoms |
| Nuclear Mass Defect | the difference between the mass of a nucleus and the sum of the masses of its constituent particles. |
| Nuclear Reaction | a device in which the controlled fission of radioactive material produces new radioactive substances and energy. |
| Nucleus | the psoitively charged dense, central part of an atom. |
| Nuclide | a variety of atom as determined by the composition of its nucleus. |
| Nuclide, parent | the heaviest, most complex naturally occuring nuclide in a decay series of radioactive elements. |
| Occulsion | the adsorption of a gas on a solid. |
| Octet | an outer shell of an atom having s and p orbitals filled with 8 electrons. |
| Open-hearth | a large furnace in which steel is made in a shallow pool. |
| Orbital, space | a highly probable location about a nucleus in which an electron may be found. |
| Orbital, quantum number | the quantum number which indicates the slope of an orbital. |
| Ore | a mineral containing an element that can be extracted profitably. |
| Organic | pertaining to carbon compounds, particluarly hydrocarbons and their derviatives. |
| Oraganosol | a suspensoid in which an organic liquid is the dispersing medium. |
| Orthorhombic | a crystalline system in which there are three unequal axes at right angles. |
| Oxidation | any chemical reaction whihc involves the loss of one or more electrons by an atom or an ion. |
| Oxidation Number | a number assigned to each element to indicate the number of electrons assumed to be gained, lost, or shared in compound formation. |
| Oxidation Potential | the difference between an electrode and its solution in a half-reaction. |
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nissaAPworld
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