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Lesson 39 Introduction to the Periodic Table & Families of Elements Chapter 7 SABIS Grade 10 Part 2 Lesson 39 Introduction to the Periodic Table & Families of Elements Chapter 7 Structure of the atom and the periodic table Lesson 1 Content 7.1 Structure of the Atom 7.2 FILM: Chemical Families 7.2.1 Classification of the elements 7.2.2 Investigating the gaseous elements 7.2.3 Investigating H2, F2, Cl2, Br2, I2 7.2.4 Investigating Li, Na, K, Rb, Cs 7.2.5 In conclusion 7.3 The Periodic Table 7.4 The Simplest Chemical Family - The Noble Gases 7.4.1 Physical properties Boiling Points Melting Points 7.4.2 Number of electrons and stability of noble gases Neon, argon, krypton, xenon, radon Sodium chloride forms stable ions 7.5 The alkali metals 7.5.1 Group 1 elements 7.5.2 Theoretical explanation of electrical conductivity 7.5.3 Properties of the alkali metals 7.5.4 Chemistry of the alkali metals 📚Pre-Requisite Questions: Can you list some of the families in the periodic table? 📚 What's special about the Noble Gases? 💎 What makes Alkali Metals different from the Halogens? 🤷♀️ Break for Reflection 🤔✍️ (Answers: 1. Some families in the periodic table are the Alkali Metals, Alkaline Earth Metals, Transition Metals, Halogens, and Noble Gases. 2. Noble Gases are special because they have a full valence electron shell and are mostly non-reactive. 3. Alkali Metals are very reactive and have one electron in their outer shell, while Halogens are also reactive and have seven electrons in their outer shell.) 🚀 Lesson Begins! 💫 Chemical Families Just as human families have common traits, elements in the same chemical family share common properties. This is because they have the same number of valence electrons. It's like family members having the same eye color! 👀 ⚗️ The Noble Gases Noble gases are like the aristocrats of the periodic table - they're a bit aloof and tend not to react with other elements because their electron shells are full. They're the cool kids, hard to impress! 🕶️ 🔥 The Alkali Metals The Alkali Metals, on the other hand, are the life of the party! 🎉 They have one electron in their outer shell and are ready to react at the drop of a hat. They're like your friend who's always up for a new adventure. 🎢 🌩️ The Halogens Then come the Halogens, who are just one electron short of having a full outer shell. They're eager to form a bond with any element that can provide that one extra electron. They're like someone looking for their perfect match! 🤝 💡In conclusion: Chemistry is not just about memorizing the periodic table or complex equations. It's about understanding the relationships and interactions between different elements. It's about seeing the beauty in the organization and the patterns that emerge. It's about appreciating the elegant dance of atoms and molecules. 🌐 Review Questions: Which family of elements is generally non-reactive because their electron shells are full? a. Alkali Metals b. Halogens c. Noble Gases d. Transition Metals Why are Alkali Metals so reactive? a. They have a full outer shell b. They are one electron short of a full outer shell c. They have one electron in their outer shell ready to be given away d. They are shiny and malleable Which family of elements is eager to form bonds to gain one extra electron? a. Alkali Metals b. Halogens c. Noble Gases d. Transition Metals (Answers: 1. c, 2. c, 3. b) End of Lesson 2 ⭐Keep studying, keep learning!⭐

046f1805-79e0-4c9e-acb6-58f89c358f76 Cooling Curve Summary A graphical representation of the relationship between temperature and time as a substance cools.

b5590a04-5fc0-46ab-8e31-4175176ffe31 < Back Previous Next Acids Bases and Salts Next Topic

be3365f2-3d15-4480-a31a-b81c30d9ae31 Freezing/Solidification Summary The change of a substance from a liquid to a solid state at a specific temperature.

< Back Unit 8 AP Chemistry Topic 1 Self Check Guide Unit 8 Self Study and Check Guide You can get more out of your site elements by making them dynamic. To connect this element to content from your collection, select the element and click Connect to Data. Once connected, you can save time by updating your content straight from your collection—no need to open the Editor, or mess with your design. Add any type of content to your collection, such as rich text, images, videos and more, or upload a CSV file. You can also collect and store information from your site visitors using input elements like custom forms and fields. Collaborate on your content across teams by assigning permissions setting custom permissions for every collection. Be sure to click Sync after making changes in a collection, so visitors can see your newest content on your live site. Preview your site to check that all your elements are displaying content from the right collection fields. Ready to publish? Simply click Publish in the top right of the Editor and your changes will appear live. Unit 8: Acids & Bases More Practice This Simulation will help you create Buffer solutions correctly , add the correct combination of a weak acid with its conjugate base Try to create 5 Correct Buffer Solutions 😀 Previous Next

6498ca3c-2e13-4332-9012-4968792a7b7a Heating wax until it melts Summary Physical

7e3bef54-6e72-4590-b92d-8c6775f840a8 Standard Temperature and Pressure (STP) Summary 0⁰C and 1.00 atm pressure

e1a02a81-cfcb-4e83-a139-99d926a43544 Combustion Reaction Summary A reaction in which a substance reacts with oxygen, usually producing heat and light.

b8a83502-368f-4f79-9ba2-e31bd0809436 Observations for the reaction of alkali metal with water: Summary  Piece of metal floats (alkali metals have low density).  Piece of metal darts around.  A hissing sound is heard due to the evolution of a gas.  If red litmus paper is dipped in the solution, the paper turns blue due to the formation of the alkali metal hydroxide.  If few drops of phenolphthalein indicator are added to the water solution turns pink due to the formation of alkali metal hydroxide.  If the gas produced is tested with a lit splint, it burns with a squeaky pop sound.