Numbers of groups

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16 Terms

1
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What is the periodic table arranged in

increasing atomic number

2
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What are periods, how many

rows; 7

3
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What are groups, how many

columns; 18

4
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Main group elements

group 1-2, 13-18

5
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Groups 3 - 12

Transition metals

6
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Group 1

Alkali metals

7
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Group 2

Alkaline earth metals

8
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Group 13

Boron family

9
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Group 14

Carbon family

10
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Group 15

Nitrogen family

11
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Group 16

Oxygen family (chalcogens)

12
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Group 17

Halogens

13
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Group 18

Noble gases

14
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Alkali metals properties

react strongly with water (to form basic solutions)

15
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Halogens

form what?

strongly reactive nonmetals, react with metals forming salts

16
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Noble gases

inert (do not readily react)