1. 6.2 Classifying the Elements > 1 Aim: How Can I Classify the Elements On The Periodic Table. Do-Now: Take out a pencil and your reference table HW: Finish your color-coded periodic table. ***Quiz Tomorrow: Study the first 20 elements their symbol and the element’s name.

2. 6.2 Classifying the Elements > 2 What can you learn about each element from the periodic table? An ID contains information specific to a particular person, such as the person’s name, address, height, eye color, and weight.

3. 6.2 Classifying the Elements > 3 Reading the Periodic Table What information can be displayed in a periodic table? Reading the Periodic Table

4. 6.2 Classifying the Elements > 4 The periodic table usually displays the symbols and names of the elements, information about the structure of their atoms. Reading the Periodic Table

5. 6.2 Classifying the Elements > 5 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.. Reading the Periodic Table This figure shows one square from a detailed periodic table of the elements.

6. 6.2 Classifying the Elements > 6 Reading the Periodic Table This figure shows one square from a detailed periodic table of the elements. There is also a vertical column with the numbers 2, 8, and 3, which indicate the number of electrons in each occupied energy level of an aluminum atom.

7. 6.2 Classifying the Elements > 7 Answer this question in your notebook using your reference table 1. Identify the element symbol, atomic number, and atomic mass for the element silver. You do not need to copy this question in your notebook.

8. 6.2 Classifying the Elements > 8 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.. Element symbol: Ag; atomic number: 47; atomic mass: 107.87 amu

9. 6.2 Classifying the Elements > 9 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.. Electron Configurations in Groups Take 2 minutes to look at your periodic ttTable Question: How can elements be classified based on electron configurations? Electron Configurations in Groups

10. 6.2 Classifying the Elements > 10 Electrons play a key role in determining the properties of elements, Therefore electron configurations help us locate elements. Electron Configurations in Groups.

11. 6.2 Classifying the Elements > 11 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.. Electron Configurations in Groups. The Noble Gases Valence Electrons : Add the highest principal level s + p levels together Helium (He)1s21s2 Neon (Ne)1s22s22p61s22s22p6 Argon (Ar)1s22s22p63s23p61s22s22p63s23p6 Krypton (Kr)1s 2 2s 2 2p 6 3s 2 3p 6 2d 10 4s 2 4p 6

12. 6.2 Classifying the Elements > 12 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.. Electron Configurations in Groups The electron configurations for the first four noble gases in Group 8A are listed below. The Noble Gases Helium (He)1s21s2 Neon (Ne)1s22s22p61s22s22p6 Argon (Ar)1s22s22p63s23p61s22s22p63s23p6 Krypton (Kr)1s 2 2s 2 2p 6 3s 2 3p 6 2d 10 4s 2 4p 6

13. 6.2 Classifying the Elements > 13 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.. The background colors in the squares are used to distinguish groups of elements in the periodic table. Reading the Periodic Table. –The elements in Group 1A are called alkali metals* Most reactive –The elements in Group 2A are called alkaline earth metals.* 2 nd most reactive

14. 6.2 Classifying the Elements > 14 Helium, neon, and argon are examples of noble gases, the elements in Group 8A of the periodic table. Electron Configurations in Groups The Noble Gases These nonmetals are sometimes called the inert gases because they rarely take part in a reaction. The noble gases neon and argon produce the colors in this neon sign.

15. 6.2 Classifying the Elements > 15 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved... Reading the Periodic Table The nonmetals of Group 7A are called halogens. –The name halogen comes from the combination of the Greek work hals, meaning “salt” and the Latin word genesis, meaning “to be born.”

16. 6.2 Classifying the Elements > 16 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved..

17. 6.2 Classifying the Elements > 17 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.. Transition Metals

18. 6.2 Classifying the Elements > 18 Electron Configurations in Groups Transition Elements The transition metals. These elements are characterized by the presence of electrons in d orbitals.

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