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5 Written questions

5 Matching questions

  1. What is an atom?
  2. What is ion?
  3. The number of covalent bonds an atom can form is equal to what?
  4. What is a neutron?
  5. What is a hydrogen bond?
  1. a an electronically neutral subatomic particle.
  2. b The term for atoms that are electronically charged as a result of gaining/losing electrons.
  3. c The smallest unit of matter that still retains the properties of an element.
  4. d Formed when a particularly positive atom from one polar molecule is attracted to the partially negative atoms in another molecule.
  5. e The number of additional electrons needed to fill its outer shell.

5 Multiple choice questions

  1. Forms when 2 atoms share 1 or more pairs of outer shell electrons and forms a molecule.
  2. Atoms held together by covalent bonds.
  3. A compound held together by ionic bonds.
  4. Solid
    Liquid
    Gas
  5. The outer shell.

5 True/False questions

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

          

  2. 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

          

  3. What are elements?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 determines the chemical properties of an atom?The number of electrons in the outermost shell.

          

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