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5 Written Questions

5 Matching Questions

  1. What is the most important source of energy in the sun?
  2. What is plasma?
  3. Dmitri Mendeleev discovered a set of __________ applied to all the elements.
  4. From left to right the _________- of elements in a period change in a pattern
  5. THe elements in the same group have ________ characteristics
  1. a a state of matter that is gas-like and is made of free electrons and nuclei of atoms without electrons
  2. b patterns
  3. c properties
  4. d When hydrogen fuses to form helium nuclei and energy is produced
  5. e similar

5 Multiple Choice Questions

  1. (1)atomic number (number of protons), (2) chemical symbol (3) name (4) atomic mass
  2. stars
  3. 63
  4. properties
  5. Mendeleev, 63

5 True/False Questions

  1. The properties of an element can be predicted from its location in the __________ _______properties


  2. THe matter in the sun and its planets originally came from a gigantic _________groups


  3. How did Mendeleev arrange the elements?in order of increasing atomic mass


  4. What do we call it when a star explodes?a supernova


  5. What is atomic mass?the average mass of all the isotopes of an element


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