pairs of electrons. For Describe/draw the structure metallic bonding the of common atoms and particles are atoms suggest how they could which share delocalised bond to obtain a full outer electrons. level of electrons. Ionic bonding occurs in compounds formed from metals combined with non-metals. Covalent bonding occurs in non-metallic elements and in compounds of Metallic bonding occurs in metallic elements and alloys. 4.2.1.2 When a metal atom Students should be able 0.5 Tabulate common atoms Use magnesium ribbon reacts with a non-metal to: and state the charges of to produce magnesium atom, electrons in the draw dot and cross the ions formed. oxide. Video clips: outer shell of the metal diagrams for ionic Draw the dot and cross atom are transferred. compounds formed by Grade 9: explain an diagram for this reaction. Metal atoms lose metals in Groups 1 and example of ionic bonding YouTube: electrons to become 2 with non-metals in including detail on electron positively charged ions. Groups 6 and 7 transfer, group numbers of YouTube: Non-metal atoms gain work out the charge on the atoms involved and the electrons to become the ions of metals and use of correct terms, eg negatively charged non-metals from the cation and anion. ions. The ions produced group number of the by metals in Groups 1 element, limited to the and 2 and by metals in Groups 1 and in Groups 6 and 2, and non-metals in 7 have the electronic Groups 6 and 7.
pairs of electrons. For metallic bonding the particles are atoms which share delocalised electrons. Ionic bonding occurs in compounds formed from metals combined with non-metals. Covalent bonding occurs in non-metallic elements and in compounds of Metallic bonding occurs in metallic elements and alloys. Describe/draw the structure of common atoms and suggest how they could bond to obtain a full outer level of electrons. 4.2.1.2 When a metal atom reacts with a non-metal atom, electrons in the outer shell of the metal atom are transferred. Metal atoms lose electrons to become positively charged ions. Non-metal atoms gain electrons to become negatively charged ions. The ions produced by metals in Groups 1 and 2 and by in Groups 6 and 7 have the electronic Students should be able to: draw dot and cross diagrams for ionic compounds formed by metals in Groups 1 and 2 with non-metals in Groups 6 and 7 work out the charge on the ions of metals and non-metals from the group number of the element, limited to the metals in Groups 1 and 2, and non-metals in Groups 6 and 7. 0.5 Tabulate common atoms and state the charges of the ions formed. Grade 9: explain an example of ionic bonding including detail on electron transfer, group numbers of the atoms involved and the use of correct terms, eg cation and anion. Use magnesium ribbon to produce magnesium oxide. Draw the dot and cross diagram for this reaction. Video clips: YouTube: YouTube:
AQA-8462-SOW-BOND.DOCX