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Vocab ch.2 pt. 2 Test

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5 Written Questions

4 Multiple Choice Questions

  1. a particle composed of one or more atoms held together by chemical bonds; the smallest particle of a compound that displays all the properties of that compound.
  2. a region within which electrons orbit that corresponds to a fixed energy level at a given distance from the atomic nucleus of an atom.
  3. a chemical bond formed by the electrical attraction between positively and negatively charged ions.
  4. the property of a liquid to resist penetration by objects at its interface with the air, due to cohesion between molecules of the liquid.

4 True/False Questions

  1. neutrona subatomic particle that is found in the nuclei of atoms, bears no charge, and has a mass approximately equal to that of a proton.

          

  2. solventa liquid capable of dissolving (uniformly dispersing) other substances in itself.

          

  3. non-polar covalent bonda covalent bond with unequal sharing of electrons, such that one atom is relatively negative and the other is relatively positive.

          

  4. polar covalent bonda covalent bond with equal sharing of electrons.

          

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