Isotope practice, physical and chemical properties practice

Practice some physical and chemical properties and learn how to write isotope notation properly.

1. Name the corresponding elements Write the corresponding chemical symbols: Lithium Li__________ e. Helium He Chromium Cr________ f. Magnesium Mg P phosphorus e. Ag Silver K potassium f. Au Gold Hg Mercury h. Rn Radon

2. Classify each of the following as a physical property or chemical property : Chlorine gas is a yellow-green color physical Sodium hydroxide (lye) is corrosive chemical Oxygen is a gas at room temperature physical Aluminum has a metallic sheen (luster) physical Silver patinas over time chemical

3. Indicate whether each of the following is an element, a compound, a heterogeneous mixture, or a homogeneous mixture . Aluminum foil a element Baking soda NaHCO 3 b compound Trail mix c heterogeneous Filtered tea (no leaves) d homogeneous Air on a sunny, cloudless day e homogeneous Air = 78% Nitrogen (N 2 ) , 21% Oxygen (O 2 ), + trace

4. Complete the table for the following neutral isotopes: Name of Isotope Isotope Notation Atomic Number Mass Number # of Protons # of Neutrons # of Electrons Example: Molybdenum-96 42 96 42 54 42 Sodium-23       11 23   11   12     11 b.     33 75     33 c.         9 10 9 Name of Isotope Isotope Notation Atomic Number Mass Number # of Protons # of Neutrons # of Electrons Example: Molybdenum-96 42 96 42 54 42 Sodium-23   11 23   11   12     11 b.     33 75     33 c.         9 10 9

5. Write the symbol, mass number, atomic number and charge of the following isotopes : A sulfur ion with 18 neutrons and 18 electrons ______________ An ion with 25 protons, 29 neutrons and 21 electrons ______________ An ion with 88 nucleons, 36 electrons and (+2) charge ______________ A nickel ion with 32 neutrons and a (+1) charge ______________