What you’ll learn6 learning objectivesChoose one objective for a focused lesson, or study the complete topic.3.1.1Organization• Periods, groups, blocks• Metals, metalloids, non-metals• Recognize s, p, d, and f blocksSyllabus objective3.1.2Electron configuration and position• Period number = outer energy level• Group = number of valence electrons• Electron configuration ↔ position (up to Z=36)• Deduce element position from electron configuration and vice versaSyllabus objective3.1.3Periodicity• Trends: atomic radius, ionic radius, IE, electron affinity, electronegativity• Explain trends across periods and down groupsSyllabus objective3.1.4Group trends• Group 1: increasing metallic character• Group 17: decreasing non-metallic character• Reactions: Group 1 metals with water, Group 17 with halide ions• Describe and explain displacement reactions using periodic trendsSyllabus objective3.1.5Metal/non-metal continuum• Oxides: basic (metal) → amphoteric → acidic (non-metal)• Oxide reactions with water• Deduce equations for oxides of group 1, group 2, carbon, and sulfur with waterSyllabus objective3.1.6Oxidation states• Number of electrons transferred in bonding• Charge if compound were ionic• Deduce oxidation states in compounds and ionsSyllabus objective