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5 Written questions

5 Matching questions

  1. What is an atom?
  2. The number of covalent bonds an atom can form is equal to what?
  3. What is a hydrogen bond?
  4. What are isotopes?
  5. What is a polar molecule?
  1. a 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
  2. b The number of additional electrons needed to fill its outer shell.
  3. c The smallest unit of matter that still retains the properties of an element.
  4. d a molecule that has opposite charges on opposite ends.
  5. e Formed when a particularly positive atom from one polar molecule is attracted to the partially negative atoms in another molecule.

5 Multiple choice questions

  1. The sum of the number of protons and neutrons in its nucleus.
  2. is one in which the nucleus decays, giving off particles of energy.
  3. the number of electrons it has.
  4. the atomic number.
  5. Forms when 2 atoms share 1 or more pairs of outer shell electrons and forms a molecule.

5 True/False questions

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

          

  2. Which part of the atom has the most energy?The outer shell.

          

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

          

  4. What primarily determines how an atom behaves?the atomic number.

          

  5. 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

          

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