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5 Written questions

5 Matching questions

  1. The bond between the hydrogen atom of one water molecule and the oxygen atom of another water molecule is made possible by
  2. What determines the chemical properties of an atom?
  3. What is ion?
  4. What is an atom?
  5. How many electrons can the 2nd and 3rd shell of an atom hold?
  1. a The number of electrons in the outermost shell.
  2. b The smallest unit of matter that still retains the properties of an element.
  3. c the polarity of the water molecule
  4. d The term for atoms that are electronically charged as a result of gaining/losing electrons.
  5. e up to 8 electrons.

5 Multiple choice questions

  1. Substances that cannot be broken down into other substances.
  2. 2.
  3. a molecule that has opposite charges on opposite ends.
  4. Electrons.
  5. A compound held together by ionic bonds.

5 True/False questions

  1. The number of covalent bonds an atom can form is equal to what?The number of additional electrons needed to fill its outer shell.


  2. What are the 4 most abundant elements in living cells?Oxygen, carbon, hydrogen, and nitrogen.


  3. What are isotopes?Elements that exist in different forms
    Forms of an element that differ in mass
    Same num of protons and electrons but diff num of neutrons


  4. What is matter?Anything that has mass and occupies space.


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


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