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5 Written questions

5 Matching questions

  1. Atomic mass
  2. Atoms
  3. Mass number
  4. Radioisotopes
  5. Matter
  1. a that which has mass and occupies space and has mass. With some exceptions, it can be seen, smelled, and felt.
  2. b The process of atomic decay is called radioactivity, and isotopes that exhibit this behavior are called...
  3. c Each element is composed of more or less identical (particles or building blocks)
  4. d is the total mass of protons, neutrons, and electrons in a atomic nucleus. The weight of all atoms of the same type.
  5. e is the sum of the masses of its protons and neutrons.

5 Multiple choice questions

  1. molecule of a compound.
  2. are polymers of simple sugars linked together by dehydration synthesis. (storage products)
  3. results from the movement of charge particles.
    Example: found in the flow of electrons along the household wiring
  4. Atoms in which the outermost energy level contains fewer than eight electrons tend to gain,lose, or share electrons with other atoms to achieve stability. (incomplete)
  5. is energy that travel in waves.
    They include visible light, infrared waves, radio waves, ultraviolet waves, and x-rays

5 True/False questions

  1. InertWhen the outermost energy level of an atom is filled to capacity or contains eight electrons, the atom is stable. Such atoms are chemically unreactive. (complete)

          

  2. Indicates an atom's outermost energy level (or that portion of it) containing the electrons that are chemically reactive.valence shell

          

  3. Chemical Energyresults from the movement of charge particles.
    Example: found in the flow of electrons along the household wiring

          

  4. the key to chemical reactivity is ...is the form stored in the bonds of chemical substances. Example: may be found in the food we eat

          

  5. When two are more (different) kinds of atoms bind, they form molecules ofmolecule of a compound.