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5 Written Questions

5 Matching Questions

  1. What is a chemical reactions?
  2. How many electrons can the 2nd and 3rd shell of an atom hold?
  3. What are isotopes?
  4. What is an ionic bond?
  5. What is matter?
  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 Anything that has mass and occupies space.
  3. c up to 8 electrons.
  4. d Changes is the chemical compound of matter.
  5. e The attraction btwn opposite charged ions.

5 Multiple Choice Questions

  1. Atoms held together by covalent bonds.
  2. The sum of the number of protons and neutrons in its nucleus.
  3. The outer shell.
  4. The smallest unit of matter that still retains the properties of an element.
  5. an electronically neutral subatomic particle.

5 True/False Questions

  1. What physical states is matter found in?Protons and neutrons.

          

  2. The tendency of water molecules to stick to each other is calledcohesion

          

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

          

  4. What are the three types of chemical bonds?Ionic
    Covalent
    Hydrogen

          

  5. What is ion?The term for atoms that are electronically charged as a result of gaining/losing electrons.

          

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