Elements and their symbols Task 1 It is very useful to know the symbols for the first twenty elements in the periodic table. Use the periodic table to complete the table. The first one has been done for you. atomic mass atomic number Atomic number 1 Name of element Hydrogen Symbol H 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 © www.teachitscience.co.uk 2013 19582 Page 1 of 5 Elements and their symbols Task 2 It is useful to know the symbols of some of the metal elements in the periodic table. Use the periodic table to complete the table. Atomic number Name of element Symbol Lithium 11 Mg Aluminium 19 Ca 22 Manganese 26 Co Ni Copper 30 47 Sn 74 79 Mercury Pb © www.teachitscience.co.uk 2013 19582 Page 2 of 5 Elements and their symbols Task 3 A. Using your Periodic table try to write five words using the symbols for the elements. For example BeAr is beryllium and argon. ...................................................................................................................................... ...................................................................................................................................... B. Can you write your whole name or part of your name using chemical symbols? ...................................................................................................................................... ...................................................................................................................................... C. Write a short sentence using chemical symbols. Then write it out in full replacing the symbols with the names of the elements. Give your partner the full version and ask them to decipher it to find out the original message. Symbol sentence ...................................................................................................................................... ...................................................................................................................................... Sentence using elements names ...................................................................................................................................... ...................................................................................................................................... D. Decipher the secret message hidden in the code. boron-radium-iodine-nitrogen-yttrium / fluorine-oxygen-xenon-sulfur / tungsten-iodine-selenium / titanium-phosphorus: lithium-sulfur-telleriumnitrogen & thorium-iodine-nitrogen-potassium / oxygen-fluorine-telluriumnitrogen! ...................................................................................................................................... ...................................................................................................................................... ...................................................................................................................................... © www.teachitscience.co.uk 2013 19582 Page 3 of 5 Elements and their symbols Answers Task 1 Atomic number Name of element Symbol 1 Hydrogen H 2 Helium He 3 Lithium Li 4 Beryllium Be 5 Boron B 6 Carbon C 7 Nitrogen N 8 Oxygen O 9 Fluorine F 10 Neon Ne 11 Sodium Na 12 Magnesium Mg 13 Aluminium Al 14 Silicon Si 15 Phosphorus P 16 Sulfur S 17 Chlorine Cl 18 Argon Ar 19 Potassium K 20 Calcium © www.teachitscience.co.uk 2013 Ca 19582 Page 4 of 5 Elements and their symbols Task 2 Atomic number Name of element Symbol 3 Lithium Li 11 Sodium Na 12 Magnesium Mg 13 Aluminium Al 19 Potassium K 20 Calcium Ca 22 Titanium Ti 25 Manganese Mn 26 Iron Fe 27 Cobalt Co 28 Nickel Ni 29 Copper Cu 30 Zinc Zn 47 Silver Ag 50 Tin Sn 74 Tungsten W 79 Gold Au 80 Mercury Hg 82 Lead Pb Task 3 D. B-Ra-I-N-Y F-O-Xe-S W-I-Se Ti-P: Li-S-Te-N & Th-I-N-K O-F-Te-N Brainy foxes’ wise tip: Listen and think often. © www.teachitscience.co.uk 2013 19582 Page 5 of 5