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5 Written questions

5 Matching questions

  1. What are elements?
  2. What are the 4 most abundant elements in living cells?
  3. What are isotopes?
  4. What is matter?
  5. What is a proton?
  1. a Anything that has mass and occupies space.
  2. b Substances that cannot be broken down into other substances.
  3. c A subatomic particle w/ a single unit of positive electrical charge (+)
  4. d 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
  5. e Oxygen, carbon, hydrogen, and nitrogen.

5 Multiple choice questions

  1. The number of protons in an atom.
  2. A compound held together by ionic bonds.
  3. A subatomic particle w/ a negative charge.
  4. The outer shell.
  5. The number of additional electrons needed to fill its outer shell.

5 True/False questions

  1. What physical states is matter found in?Solid


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


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


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


  5. What determines which element it is?the atomic number.