C4 Electron structure and ionic bonding revision You need to Questions summary know how to… Identify the numbers of protons, neutrons and electrons in an atom from info in the periodic table Describe the properties and trends of the alkali metals Class: Calculate the numbers of protons, neutrons and electrons for the following atoms: Lithium Argon Oxygen Gold Phosphorus Chlorine Complete the following table: Name Symbol Melting point / OC Li 181 Boiling point / OC Sodium 890 Potassium Rb Symbol 686 Appearance F Formula of oxide Reaction with water 0.5 Li2O Bubbles 0.86 1.5 Complete the following: Word: Lithium + chlorine ____________ Balanced symbol: Name Density / g/cm3 0.97 63 Rubidium Write word and balanced symbol equations for reactions Recall the properties and trends of the halogens Name: Melting point / OC Potassium + water ____________ + _____________ Boiling point / OC Formula with Mg -34 MgCl2 -220 Chlorine -7 Iodine Understand how flame testing helps identify elements and discover new ones 1 Describe the flame colours of: Lithium 134 Sodium Describe how scientists use flame colours to discover new elements: © Class Leading Ltd. 2013. Permission granted for non-commercial educational use, provided that due acknowledgement is given and that this copyright notice is included. Potassium Reaction with sodium Draw electron ring diagrams for the first 20 elements and how this links to position in the periodic table Draw electron ring structures for the following atoms: Hydrogen Oxygen Neon Understand how Describe the properties of sodium and chlorine. salts are made from reactions of metals and non-metals and how the Describe the properties of sodium chloride. properties of ionic substances are different to their component elements Draw electron Draw electron ring structures for the following ions: ring diagrams Hydrogen H+ Oxygen O2Neon ions formed from any of the first 20 elements Work out the charge on an ion from position of the atom in the periodic table Understand how to construct formula from ions 2 Sodium Magnesium Chlorine Draw diagrams showing the structure of: Sodium metal Chlorine gas Sodium Na+ Work out the charges that you would get if the following atoms formed ions: Lithium Calcium Aluminium Nitrogen Use the information about ions above to work out the formula of the following molecules: a) Lithium chloride b) Magnesium oxide c) Calcium chloride d) Sodium oxide - Potassium Sodium chloride salt Magnesium Mg2+ Chlorine Cl- Potassium K+ Sulfur Bromine Argon Hydroxide ions are OH- and sulfate ions are SO4 2-. Use this information to work out the formula of the following molecules: a) Potassium hydroxide b) Calcium hydroxide c) Magnesium sulfate d) Sodium sulfate - © Class Leading Ltd. 2013. Permission granted for non-commercial educational use, provided that due acknowledgement is given and that this copyright notice is included.
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