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5 Written questions

5 Matching questions

  1. What makes up the nucleus?
  2. What is a proton?
  3. What determines which element it is?
  4. The number of shells an atom has depends on what?
  5. The tendency of water molecules to stick to each other is called
  1. a cohesion
  2. b the number of electrons it has.
  3. c A subatomic particle w/ a single unit of positive electrical charge (+)
  4. d Protons and neutrons.
  5. e the atomic number.

5 Multiple choice questions

  1. the polarity of the water molecule
  2. 2.
  3. Anything that has mass and occupies space.
  4. The sum of the number of protons and neutrons in its nucleus.
  5. The smallest unit of matter that still retains the properties of an element.

5 True/False questions

  1. What are elements?Substances that cannot be broken down into other substances.

          

  2. What is a chemical reactions?Forms when 2 atoms share 1 or more pairs of outer shell electrons and forms a molecule.

          

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

          

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

          

  5. What is ion?The sum of the number of protons and neutrons in its nucleus.

          

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