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5 Written questions

5 Matching questions

  1. What is ion?
  2. The tendency of water molecules to stick to each other is called
  3. How many electrons can the 2nd and 3rd shell of an atom hold?
  4. What is a chemical reactions?
  5. What makes up the nucleus?
  1. a The term for atoms that are electronically charged as a result of gaining/losing electrons.
  2. b Protons and neutrons.
  3. c Changes is the chemical compound of matter.
  4. d up to 8 electrons.
  5. e cohesion

5 Multiple choice questions

  1. the atomic number.
  2. A subatomic particle w/ a single unit of positive electrical charge (+)
  3. A subatomic particle w/ a negative charge.
  4. 2.
  5. is one in which the nucleus decays, giving off particles of energy.

5 True/False questions

  1. What is the atomic number?The number of protons in an atom.


  2. The number of shells an atom has depends on what?The number of additional electrons needed to fill its outer shell.


  3. Which part of the atom has the most energy?The number of protons in an atom.


  4. What is an ionic bond?The attraction btwn opposite charged ions.


  5. What is a molecule?a molecule that has opposite charges on opposite ends.