Show how an ionic bond is formed Work out the charge on an ion Outcomes Explain why atoms form ionic bonds Bellwork True or false sheet….. How much Chemistry do you remember from last year?

Show how an ionic bond is formed Work out the charge on an ion Outcomes Explain why atoms form ionic bonds The diagram represents an atom of an element. (a)Write the electronic structure of this atom as numbers and commas. (b)How many protons are in the nucleus of this atom? (c)Name the other particles that are in the nucleus. (d)In which group of the periodic table is this element? (e)Draw a similar diagram to show the ion formed by this atom in ionic compounds. Show the charge on the ion. Title: Chemical Bonding

Show how an ionic bond is formed Work out the charge on an ion Outcomes Explain why atoms form ionic bonds Answers: Self Assessment (a)2, 8, 3 (b)13 protons (same as the number of electrons) (c)Neutrons (d)Group 3 (3 electrons in the outer shell.) (e)

Show how an ionic bond is formed Work out the charge on an ion Outcomes Explain why atoms form ionic bonds We are learning about different types of chemical bonding Real life learning benefit: you’ll understand the properties of household products and how to safely use them Keywords: Ionic Covalent Metallic Ions Bonding

Show how an ionic bond is formed Work out the charge on an ion Outcomes Explain why atoms form ionic bonds CAF: What can you tell me?

Show how an ionic bond is formed Work out the charge on an ion Outcomes Explain why atoms form ionic bonds The Periodic Table: A reminder Columns = groups Group number = number of electrons in outer shell Rows = periods Row number = number of shells

Show how an ionic bond is formed Work out the charge on an ion Outcomes Explain why atoms form ionic bonds The Electronic Structure of Sodium The Electronic Structure of a Sodium Ion EXAMPLES!!

Show how an ionic bond is formed Work out the charge on an ion Outcomes Explain why atoms form ionic bonds Demonstrate your learning Atomic number AtomElectronic structure Ion formed Electronic structure of ion 8O2, 6[O] 2- [2, 8] 2- Complete the table for the first twenty elements. Use a periodic table to help. Challenge: what different molecules can you make with these atoms? (Hint: molecules must have neutral charge)

Show how an ionic bond is formed Work out the charge on an ion Outcomes Explain why atoms form ionic bonds Electronic arrangements No.ElementShell Hydrogen1 2Helium2 3Lithium21 4Berylium22 5Boron23 6Carbon24 7Nitrogen25 8Oxygen26 9Fluorine27 10Neon28 No.ElementShell Sodium281 12Magnesium282 13Aluminium283 14Silicon284 15Phosphorus285 16Sulphur286 17Chlorine287 18Argon288 19Potassium Calcium2882 How do you quickly work out the electronic structure of an ion? Self assessment

Show how an ionic bond is formed Work out the charge on an ion Outcomes Explain why atoms form ionic bonds Reactivity CAF – why does the reactivity of the alkali metals increase as you go down the group, but the reactivity of the halogens decrease as you go down the group? Video Clip Science Bank 1

Show how an ionic bond is formed Work out the charge on an ion Outcomes Explain why atoms form ionic bonds Review: CAF: Why does NaCl (table salt) have such a high melting point? (PEE your answer!) AQA additional science book p83 if you need support. Grade your own work/peer assess and justify that grade.