Electron config' of Pb

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Electron config. of Pb 82
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p-block

• representative elements
• diverse properties
• metals, semimetals and nonmetals
• very reactive halogens

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p-block

• unreactive noble gases
• exist as solids, liquids gases at room temp.
• most abundant useful elements on prdic. table

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Allotropes

• Forms of an element differing in crystal
  structure or bonding.

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Fullerene
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Hydrogen

• some similarities with groups 1 and 17
• most abundant element in universe
• frequently combined with oxygen and carbon.

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Review 1

• What element has the greatest electronegativity?

F fluorine
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Review 2

• What element has the largest atoms?

Fr francium
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Review 3

• What metal is the most reactive?

Fr francium
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Review 4

• What nonmetal is the most reactive?

F fluorine
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Review 5

• What group do alkali metals tend to react with?

Group 17 halogens