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5 Written questions

5 Matching questions

  1. What is the atomic number?
  2. What are the three types of chemical bonds?
  3. What makes up the nucleus?
  4. What are elements?
  5. What is ion?
  1. a The number of protons in an atom.
  2. b Substances that cannot be broken down into other substances.
  3. c Protons and neutrons.
  4. d Ionic
    Covalent
    Hydrogen
  5. e The term for atoms that are electronically charged as a result of gaining/losing electrons.

5 Multiple choice questions

  1. Electrons.
  2. A subatomic particle w/ a single unit of positive electrical charge (+)
  3. The attraction btwn opposite charged ions.
  4. Formed when a particularly positive atom from one polar molecule is attracted to the partially negative atoms in another molecule.
  5. 25.

5 True/False questions

  1. What is a covalent bond?Formed when a particularly positive atom from one polar molecule is attracted to the partially negative atoms in another molecule.

          

  2. What are the 4 most abundant elements in living cells?the atomic number.

          

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

          

  4. The number of covalent bonds an atom can form is equal to what?the number of electrons it has.

          

  5. What determines which element it is?Substances that cannot be broken down into other substances.