Periodic Table

Periodic Table (Flash)

 1 2 3 4 5 6 7 6 7

 1 18 1 2 3 4 5 6 7 2 13 14 15 16 17 3 4 5 6 7 8 9 10 11 12 6 7

 1 18 1 2 3 4 5 6 7 2 13 14 15 16 17 3 4 5 6 7 8 9 10 11 12 6 7

 1 metals nonmetals 18 1 2 3 4 5 6 7 2 13 14 15 16 17 B Si 3 4 5 6 7 8 9 10 11 12 Ge As Sb Te Po At 6 7

 1 metals nonmetals 18 1 2 3 4 5 6 7 2 13 14 15 16 17 B Si 3 4 5 6 7 8 9 10 11 12 Br Ge As Sb Te Hg Po At 6 7

 1 metals nonmetals 18 1 2 3 4 5 6 7 H He 2 13 14 15 16 17 B N O F Ne Si 3 4 5 6 7 8 9 10 11 12 Cl Ar Br Ge As Kr Sb Te Xe Hg Po At Rn 6 7

 1 metals nonmetals 18 1 2 3 4 5 6 7 H He 2 13 14 15 16 17 B N O F Ne Si 3 4 5 6 7 8 9 10 11 12 Cl Ar Alkali Metals Br Ge As Kr Alkaline earth Metals Transition Metals Sb Te Xe Hg Po At Rn Halogens Noble Gases 6 7 Lanthanides Actinides

Periodic Table Definitions Period – horizontal row on P.T. There are 7 of them. Is equal to number of energy levels Group – Also called family. Vertical column on the P.T. There are 18 of them. Last number for 1, 2, 13-18 indicated number of valence electrons.

Periodic Table Definitions Metals – Good conductors of heat and electricity. Located on the left of the zigzag line on P.T. Nonmetals – Poor conductors of heat and electricity. Often brittle. Located on the right of the zigzag line on the P.T. Metalloids – Properties are inbetween metals and nonmetals. Good semi-conductors of electricity. Located along the zigzag line.

Periodic Table Groups Alkali metals – Group 1 metals. VERY reactive. Only found as compounds in nature. Alkaline earth metals – Group 2 metals. Reactive; only found as compounds in nature. Not as reactive as group 1. Transition metals – Metals in Groups 3-12. Lots of variation in properties. Generally don’t talk about these.

Periodic Table Groups Halogens – Group 17 nonmetals. Means “Salt former”. Very reactive. Noble gases – Group 18. Inert (means “unreactive”). Do not form compounds. Lanthanides and Actinides – placed under P.T. to keep P.T. short.

GPB http://www.gpb.org/chemistry-physics/chemistry/402