Chemistry Topic 4 Quiz

13 Questions

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Chemistry Quizzes & Trivia

A quiz on topic 4- How atoms combine.


Questions and Answers
  • 1. 
    What is an element?
    • A. 

      A substance made of two or more different atoms chemically joined together.

    • B. 

      A substance made of only one type of atom.

    • C. 

      A group of non-metal atoms which are chemically joined together.

    • D. 

      I don't have a clue.

  • 2. 
    Which of these is a diatomic element?
    • A. 

      Calcium

    • B. 

      Gold

    • C. 

      Hydrogen

    • D. 

      Phosphorus

  • 3. 
    What is a compound?
    • A. 

      A substance made of only one type of atom.

    • B. 

      A substance made of two or more different atoms chemically joined together.

  • 4. 
    Why are noble gases different from other non-metal elements? (choose 2 answers)
    • A. 

      They do not exist as molecules, but as single atoms.

    • B. 

      They are very reactive.

    • C. 

      They are very un-reactive.

    • D. 

      They exist as molecules.

  • 5. 
    Each atom of every noble gas has an outer energy level which is
  • 6. 
    Atoms of non-metal elements (except noble gases) obtain a stable electron arrangement like the noble gases by chemically joining with other non-metal atoms. What are the forces of attraction which hold these atoms together called?
    • A. 

      Bridges

    • B. 

      Joints

    • C. 

      Bonds

  • 7. 
    When is a covalent bond formed?
    • A. 

      When two non-metal atoms share a pair of protons

    • B. 

      When two non-metal atoms share a nucleus.

    • C. 

      When two non-metal atoms share a pair of electrons.

    • D. 

      When two non-metal atoms share a pair of neutrons.

  • 8. 
    The nucleus, in the centre of an atom, has which charge?
    • A. 

      Positive

    • B. 

      Negative

    • C. 

      Neutral

  • 9. 
    When is a double bond formed?
    • A. 

      When a pair of electrons is shared between three atoms.

    • B. 

      When two pairs of electrons are shared between two atoms.

    • C. 

      When an electron is shared between two atoms.

  • 10. 
    What is the shape of this molecule called?
    • A. 

      Linear

    • B. 

      Planar

    • C. 

      Pyramidal

    • D. 

      Tetrahedral

  • 11. 
    What do the following prefix's mean: Mon- , Di-, Tri-, Tetra-
    • A. 

      Mon- means 1, Di- means 2, Tri- means 4, Tetra- means 3

    • B. 

      Mon- means 1, Di- means 2, Tri- means 3, Tetra- means 4

    • C. 

      Mon- means 2, Di- means 4, Tri- means 3, Tetra- means 1

    • D. 

      Mon- means 4, Di- means 2, Tri- means 3, Tetra- means 1

  • 12. 
    What information is given by the symbols in a formula?
    • A. 

      The elements in the molecule.

    • B. 

      The size of the molecule.

  • 13. 
    What information is given by the numbers in a formula?
    • A. 

      The size of the molecule

    • B. 

      The amount of each element present in the molecule.