Chapter 6 The Periodic Table 6.1 Organizing the Elements

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Chapter 6 The Periodic Table 6.1 Organizing the Elements 6.2 Classifying the Elements 6.3 Periodic Trends Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. .

Do Now: How many different ways can your group sort a deck of cards? CHEMISTRY & YOU Do Now: How many different ways can your group sort a deck of cards? Be prepared to discuss the classification system your group came up with. Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. .

Mendeleev’s Periodic Table Mendeleev arranged elements in order of increasing atomic mass. Elements with similar properties were put in the same row. Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. .

Today’s Periodic Table In the modern periodic table, elements are arranged in order of increasing atomic number. Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. .

Today’s Periodic Table Horizontal row Corresponds to a principal energy level. Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. .

Today’s Periodic Table Group Vertical column Elements in a group have similar chemical and physical properties. Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. .

Mendeleev’s Periodic Table Periodic Law When elements are arranged in order of increasing atomic number, there is a periodic repetition of their chemical and physical properties Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. .

Do Now: Fill in a Venn Diagram for Metals & Nonmetals Metals CHEMISTRY & YOU Do Now: Fill in a Venn Diagram for Metals & Nonmetals Metals Non-Metals Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. .

Metals, Nonmetals, and Metalloids yellow squares most elements are metals (~80%). Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. .

Metals, Nonmetals, and Metalloids Malleable – can be hammered into sheets Ductile – can be drawn into wires Good conductors of heat & electric current Solids at room temp., except mercury (Hg). Shiny Hard Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. .

Metals, Nonmetals, and Metalloids Blue is used to identify the nonmetals. Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. .

Metals, Nonmetals, and Metalloids Properties are opposite to those of metals. Poor conductors of heat and electricity. Solid nonmetals tend to be brittle Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. .

Metals, Nonmetals, and Metalloids A heavy stair-step line separates metals from nonmetals. Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. .

Metals, Nonmetals, and Metalloids Properties can be similar to metals and nonmetals. Under some conditions, metalloids behave like metals. Under others, they behave like nonmetals. Behavior can be controlled by changing the conditions. Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. .