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    We will have a science test on Monday, November 15th on matter. Here is a copy of the study guide that went home in the Friday Folder.

    ·       Study Guide for the Elements Quiz


    Quiz Date: Monday, November 15th


    ·        Students must be able to label each part of an atom on a diagram like the one here and be able to identify the type of electrical charge each part has, if any:

                 The diagram of the atom is not scanned here. Here is the information contained on the diagram:
                 The protons (positive charge) and neutrons (neutral charge) are located in the nucleus (the center) of the atom. The electrons (negative charge) move around the nucleus within their shells (layers).            







    ·        Each atom has the same number of protons and electrons.


    ·        A group of atoms is called a molecule.


    ·        An element is a substance made up of the same types of atoms. Examples of elements are hydrogen, helium, gold, copper.


    ·        The name of the chart that lists the names, symbols, and atomic numbers of all the known elements is called The Periodic Table of Elements. The atomic number of an element tells you the number of protons/electrons in each atom of the element.


    ·        There are 110 elements that have been discovered by scientists. 91 of these are found in nature and the rest scientists isolated in a laboratory. The Periodic Table lists all of the elements in order of the number of protons in the nucleus. Hydrogen is the lightest and element in the Table. Therefore, Hydrogen is listed first and its’ atomic number is “1”. The chemical symbol for Hydrogen is “H”.




    ·        The 8 most common elements on earth are: Iron, Oxygen, Silicon, Magnesium, Sulfur, Nickel, Calcium, and Aluminum. (Students will need to be able to name 4 of the 8).


    ·        A compound is a substance that is made of 2 or more different types of elements. Water is an example of a compound and not an element because it is made of 2 elements combined: Hydrogen and Oxygen (H2 O).






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