representative groups

representative groups - Transcript

Name Chapter 5 The Periodic Table

Class

Date

Section 5 3 Representative Groups
pages 139 145 This section discusses how the number of valence electrons affects the properties of elements It also describes properties of elements in Groups 1A through 8A

Reading Strategy

page 139

Monitoring Your Understanding As you read record an important fact about each element listed in the table For more information on this reading strategy see the Reading and Study Skills in the Skills and Reference Handbook at the end of your textbook
Element Magnesium Important Fact

Aluminum

Chlorine

Valence Electrons
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page 139

1 An electron that is in the highest occupied energy level of an atom is a n electron 2 Elements within a group have the number of valence electrons

The Alkali Metals

page 140

3 The reactivity of alkali metals Group 1A to the bottom 4 Sodium is stored under oil because it

from the top of

The Alkaline Earth Metals

page 141

5 Differences in reactivity among alkaline earth metals are shown by the way they react with Find and match two properties to each element listed Alkaline Earth Metal Property 6 magnesium 7 calcium a Helps build strong teeth and bones b Helps plants produce sugar c Is used to make lightweight bicycle frames d Is the main ingredient in limestone

Physical Science Guided Reading and Study Workbook

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Chapter 5

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Name Chapter 5 The Periodic Table
page 142

Class

Date

The Boron Family

8 List the four metals in Group 3A a b c d 9 Circle the letter of each sentence that is true about aluminum a It is the most abundant metal in Earth s crust b It is often found combined with oxygen in bauxite c It is more reactive than sodium and magnesium d It is a good conductor of electric current

The Carbon Family

page 142

10 List the two metalloids in Group 4A a b 11 Except for water most of the compounds in your body contain

The Nitrogen Family

page 143

12 List the nonmetals in Group 5A a b 13 Name two elements in the nitrogen family that are contained in fertilizer a b

The Oxygen Family page 143
14 List the nonmetals in Group 6A a b 15 Name the most abundant element in Earth s crust c

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The Halogens

page 144

16 List the four nonmetals in Group 7A a b c d 17 Halogens have similar different properties

properties but

The Noble Gases

page 145

18 Name three characteristics of noble gases a b c 19 How can an element that does not react easily with other elements be useful

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Physical Science Guided Reading and Study Workbook

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Chapter 5