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Grade Ten Academic Chemistry Test (f) 1. Name:_______________________ Write the standard notation for Lithium _____ Aluminum ______ phosphorus ______ Fill in the charge in the brackets. Fill in the lines. ( ( ( ) P _____ ) E _____ ) N _____ ( ( ( ) P _____ ( ) E _____ ( )N _____ ( 2a. Draw Bohr-Rutherford diagrams for Lithium Aluminum ) P _____ ) E _____ ) N _____ Phosphorus 2b. Number of valence electrons Lithium _________ Aluminum __________ Phosphorus_________ 2c. Column or group number (Note: Column 16 not 6). Lithium _________ Aluminum __________ Phosphorus_________ 2d. Charge on the atom Lithium _________ Aluminum __________ Phosphorus_________ 2e. Use the words proton, positive, negative and electron to explain how to calculate the charges for 2d above. ___________________________________________________________________________________ 3a. Draw Bohr-Rutherford diagrams for the stable ions of Lithium Aluminum Phosphorus 3b. For the stable ions you drew B-R diagrams above state the number of electrons lost or gained Lithium, _____________Aluminum______________Phosphorus ____________________ 3c For the stable ions you drew B-R diagrams for above state their ionic charge. Lithium, _____________Aluminum______________Phosphorus ____________________ 3d Using the words protons, electrons, positive and negative, explain how you can calculate the charge of an ion. _________________________________________________________________________ _________________________________________________________________________ 3e Which noble gas possesses the same number of electrons as the stable ions you created. Lithium, _______________ Aluminum____________________Phosphorus ____________________ 4a. Show how Beryllium and nitrogen join to form an ionic compound. 4b 4c What is the name of this compound? _________________________ Formula?_____________ Explain the charge on this compound. Charge ______________________ _____________________________________________________________________________________ _____________________________________________________________________________________ 5 Show how chlorine atoms join together to form a diatomic molecule. 6 Write the chemical formulas for the following compounds Boron sulfide_______________________ Beryllium nitride ______________________ Boron sulfate_______________________ Beryllium nitrite _______________________ Tin (IV) bromide____________________ Copper (II) sulfide__________________________ Magnesium hydroxide________________ Iron III oxide _____________________________ Lead (II) nitrate _____________________ Calcium carbonate Barium sulfide ______________________ Aluminum oxide ___________________________ 7 _______________________ Write the names for the following compounds Li2CO2_____________________________ CuSO4 _______________________________ PbSO4 _____________________________ PbO Ca3N2 _____________________________ Fe(ClO3)3 ____________________________ SnS _____________________________ SnO2 _______________________________ FeP _____________________________ K3PO4 _______________________________ NaF _____________________________ K2O ________________________________ _______________________________ 8 Write the chemical formulas for the following molecular compounds Carbon dioxide ___________________ diphosphorus trioxide ___________________ Nitrogen monoxide ________________ carbon tetrachloride ____________________ 9 Write the names for the following compounds. CF4 ____________________________ P2O5_______________________________ N2O4___________________________ SO3________________________________ 10 Use your periodic table to complete the table Element Name Atomic Number Mass Number Standard Atomic Notation Number of protons Number of electrons Number of neutrons Potassium 40 Ar18 8 6 11. Circle whether the property is physical or chemical. Physical Chemical boiling or condensing point Physical Chemical melting or freezing point Physical Chemical flash point Physical Chemical behavior in air Physical Chemical ductility Physical Chemical conductivity Physical Chemical crystal formation Physical Chemical reaction to heating Physical Chemical state Physical Chemical colour Physical Chemical malleability Physical Chemical ability to burn Physical Chemical reaction with water Physical Chemical solubility 12 Fill in the table Name Proton Neutron Electron Symbol Relative Mass Charge Location 13 Match the word to the meaning by writing the letter on the line. _____ mixture A. Is a substance that cannot be broken down into any simpler substance by chemical means. Iron, oxygen and neon are examples. _____ element B. Is a substance that is made from two or more elements that are combined together chemically. For example methane (CH4). _____ compound C. Is a combination of substances. The proportions of pure substances can vary, so the properties vary as well. _____ homogenous mix D. Is one in which different parts are visible. Salad dressing is an example. _____ heterogeneous mix E. Looks the same throughout and separate components are not visible. Solutions are examples. 14 On the periodic table below label: halogens, alkali metals, noble gasses, alkaline earth metals. 15 T or F T or F T or F T or F T or F T or F T or F T or F T or F T or F T or F T or F True or False The horizontal rows of the periodic table are called periods. The horizontal columns are called families or groups. Metals are on the left and in the center of the table. Non-metals are located on the right-hand side of the table. Metals are separated from non-metals by a staircase of elements called Metallica. Atomic number is the number of protons in an atom of an element. Atomic mass is the number of protons in an atom of an element. An ion is an atom or group of atoms with a negative charge or a positive charge. Noble gases are non-metals that are colourlesss, odorless gases and very unreactive. The maximum number of electrons in the innermost shell is two in a Bohr diagram. The outer shell in a Bohr diagram is called the valence. Surrounding the nucleus, and more than 10 000 times larger than it, are a series of cloud-like energy levels called shells.