The Periodic Table Unit 5

Structure and Regions Basic Structure of Table –Elements arranged in order of increasing atomic # –7 rows called periods –18 columns called groups or families –Plus lanthanides and actinides Basic Structure of Table –Elements arranged in order of increasing atomic # –7 rows called periods –18 columns called groups or families –Plus lanthanides and actinides

Structure and Regions Sections (3) – 1.Representative Elements Groups 1, 2, s & p blocks Sections (3) – 1.Representative Elements Groups 1, 2, s & p blocks

Structure and Regions 2. Transition Metals –Groups 3-12 –d block 3. Inner Transition Metals – –f block –Lanthanides and Actinides Named after 1 st element in series 2. Transition Metals –Groups 3-12 –d block 3. Inner Transition Metals – –f block –Lanthanides and Actinides Named after 1 st element in series

Structure and Regions 4 Regions Metals Largest region – left of staircase Solids (except Hg) Conduct heat/electricity Luster Ductile (stretchable) Malleable (able to be flattened) 4 Regions Metals Largest region – left of staircase Solids (except Hg) Conduct heat/electricity Luster Ductile (stretchable) Malleable (able to be flattened)

Structure and Regions Non-metals –Right of staircase –Solids, liquids, gases –Low conductivity (heat and electricity) –Low luster –Brittle solids Non-metals –Right of staircase –Solids, liquids, gases –Low conductivity (heat and electricity) –Low luster –Brittle solids

Structure and Regions Metalloids/Semi- Metals –On staircase –Share properties of metals and nonmetals –Semi-conductors Metalloids/Semi- Metals –O–On staircase –S–Share properties of metals and nonmetals –S–Semi-conductors

Structure and Regions Noble Gases –All gases –Extremely unreactive Noble Gases –All gases –Extremely unreactive

Structure and Regions Phases at STP (standard temp is 0 o C, and standard pressure is 1 atm) –Liquids – only Hg and Br –Gases – N, O, F, Cl, H, Noble gases –Solids – all the rest Phases at STP (standard temp is 0 o C, and standard pressure is 1 atm) –Liquids – only Hg and Br –Gases – N, O, F, Cl, H, Noble gases –Solids – all the rest

Structure and Regions Diatomic Gases –7 of the naturally found gases are “diatomic” –That means they are found in nature as molecules of 2 atoms –Br, I, N, Cl, H, O, F Diatomic Gases –7 of the naturally found gases are “diatomic” –That means they are found in nature as molecules of 2 atoms –Br, I, N, Cl, H, O, F