Summary

These Chemistry 11 notes cover the periodic table, including the need for organization, periodic law, and electron configurations of different elements. It describes how elements recur periodically when arranged by increasing atomic mass. The notes also summarize various groups of elements like alkali metals, alkaline earth metals, halogens, and noble gases.

Full Transcript

Chem 11 THE PERIODIC TABLE -------------------------- Chapter 11 ========== ### The Need to Organize - - A. Organizing By Properties - - - - 1. Conclusions - 2. Periodic Law "The Properties of the elements recur periodically when the elements are arranged in increasing o...

Chem 11 THE PERIODIC TABLE -------------------------- Chapter 11 ========== ### The Need to Organize - - A. Organizing By Properties - - - - 1. Conclusions - 2. Periodic Law "The Properties of the elements recur periodically when the elements are arranged in increasing order by their atomic masses." II. Today's Table - A. - 1\. Group 1 Alkali Metals - 2\. Group 2 Alkaline Earth Metals 3\. Group 17 Halogens 4\. Group 18 Noble gases (unreactive) B. a. \- Chemically are fit in space 57 5\. Period 7 - 24 Trans. Metal a. Patterns in Electron Structure: I. Q. Mechanics - - II. The Periodic table and Electron configuration +-----------------+-----------------+-----------------+-----------------+ | **Electron | | | | | Configurations | | | | | For Some | | | | | Elements** | | | | +-----------------+-----------------+-----------------+-----------------+ | Alkali Metals | Alkaline Earths | Halogens | Noble Gases | | | | | | | Li | Be 1s^2^ 2s^2^ | F | Ne | | | | | | | Na 1s^2^ 2s^2^ | Mg | Cl | Ar | | 2p^6^ 3s^1^ | | | | | | Ca | Br 1s^2^ 2s^2^ | Kr | | K | | 2p^6^ 3s^2^ | | | | | | | | | | 3p^6^ 4s^2^ | | | | | 3d^10^ 4p^5^ | | +-----------------+-----------------+-----------------+-----------------+ A. - 1. 2. 3. 4. 5. B. 1. Representative Elements - 2. Transition Metals - III. A. Noble Gases B. Alkali Metals - i.e. Na^+^ and Ne C. Alkaline Earth Metals - i.e. Mg^+2^ isoelectronic with Ne D. Halogens - i.e. Br^-^ isoelectronic with Kr

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