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Periodic Table.

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Presentation on theme: "Periodic Table."— Presentation transcript:

1 Periodic Table

2 Periodic Table (Flash)

3 1 2 3 4 5 6 7 6 7

4 1 18 1 2 3 4 5 6 7 2 6 7

5 1 18 1 2 3 4 5 6 7 2 6 7

6 1 metals nonmetals 18 1 2 3 4 5 6 7 2 B Si Ge As Sb Te Po At 6 7

7 1 metals nonmetals 18 1 2 3 4 5 6 7 2 B Si Br Ge As Sb Te Hg Po At 6 7

8 1 metals nonmetals 18 1 2 3 4 5 6 7 H He 2 B N O F Ne Si Cl Ar Br Ge As Kr Sb Te Xe Hg Po At Rn 6 7

9 1 metals nonmetals 18 1 2 3 4 5 6 7 H He 2 B N O F Ne Si 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

10 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, indicated number of valence electrons.

11 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.

12 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 Lots of variation in properties. Generally don’t talk about these.

13 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.

14 GPB


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