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Periodic Table of Elements: Overview and Key Concepts

Learn about the periodic table of elements, including its arrangement, periods, groups, metals, metalloids, alkali metals, alkaline earth metals, transition metals, non-metals, and noble gases.

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Periodic Table of Elements: Overview and Key Concepts

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  1. Vocabulary 1.5 The Periodic Table Chastain 2017 On-Level - You need 10 Index Cards

  2. 1. The Periodic Table of Elements • The periodic table is an arrangement of the chemical elements. • Ordered by their atomic number (number of protons), electron configurations, and recurring chemical properties.

  3. Mendeleev’s Periodic Table • https://www.youtube.com/watch?v=fPnwBITSmgU

  4. 2. Period • A period is the name given to a horizontal row of the periodic table. • The periodic table has seven periods. • Period 1 contains only two elements: hydrogen and helium.

  5. 3. Group or Family • A group (also known as a family) is a column of elements in the periodictable of the chemical elements. 

  6. 4. Metals • Majority of the elements are metals. • A substance (as gold, tin, copper, or bronze) that has a more or less shiny appearance, is a good conductor of electricity and heat.

  7. 5. Metalloid • An element with properties between the typical metals and nonmetals. • They usually have some properties of metal. • (boron, silicon, or arsenic)

  8. 6. Alkali Metals • The alkali metals are a group of elements in the periodic table. • They are all in the first column of the periodic table. Hydrogen is in the 1st column but is not in this group. • They are shiny, soft, metals. They are very reactive.

  9. Alkali Metals • https://www.youtube.com/watch?v=JAPWCJEo9Iw

  10. 7. Alkaline Metals/Alkali Earth Metal • This family consists of beryllium, magnesium, calcium, strontium, barium, and radium. • These chemical elements occupy the second column of the periodic table.

  11. 8. Transition Metals • The elements in group 3-12 of the periodic table. • This is the most familiar metals like iron, copper, nickle, silver, and gold. • Most are hard and shiny. • They are good conductors of electricity.

  12. 9. Non-Metal • A chemical element that lacks the characteristics of a metal. • Ex: hydrogen, carbon, nitrogen, phosphorus, oxygen, sulfur, and selenium.

  13. 10. Inert/Noble Gas • In the right-hand column of the periodic table of elements is a group know as the noble gases. Ex: helium, neon, argon, krypton, xenon, and radon. .

  14. Noble Gases • https://www.youtube.com/watch?v=Lid8BsbqTDQ

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