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Hydrogen

Hydrogen. Nonmetal! Exists as H 2 (diatomic) when alone as an element. Most abundant element in universe… Rare in Earth’s atmosphere. Click here for hydrogen demo. Alkali Metals. Group 1 (1A) Properties of all metals… Shiny & Good Conductors Malleable – can be hammered into thin sheets.

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Hydrogen

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  1. Hydrogen • Nonmetal! • Exists as H2 (diatomic) when alone as an element. • Most abundant element in universe… • Rare in Earth’s atmosphere Click here for hydrogen demo

  2. Alkali Metals • Group 1 (1A) • Properties of all metals… • Shiny & Good Conductors • Malleable – can be hammered into thin sheets. • Ductile – can be drawn into thin wires. [http://wps.prenhall.com/wps/media/objects/602/616516/Media_Assets/Chapter01/Text_Images/FG01_02-04UN.JPG]

  3. Alkali Metals • Low density and melting points. • Soft and silver-white in color • Highly unstable elements that are not found pure in nature. [http://www.microchem.de/elec000a-k.JPG]

  4. Alkali Metals • All form +1 ions. • Most reactive metals on table (low ionization energy) and this increases from Li to Fr. Click here for Alkali Metals & Water Demos [http://wps.prenhall.com/wps/media/objects/476/488316/Instructor_Resources/Chapter_09/FG09_33.JPG]

  5. Alkaline Earth Metals • Group 2A • Higher density and M.P. than Alkali Metals. [http://wps.prenhall.com/wps/media/objects/602/616516/Media_Assets/Chapter01/Text_Images/FG01_02-04UN.JPG]

  6. Alkaline Earth vs. Alkali Metals [http://wps.prenhall.com/wps/media/objects/602/616516/Media_Assets/Chapter06/Text_Images/FG06_TB05.JPG]

  7. Alkaline Earth Metals • More of a silver-metallic color for this group. • Also highly reactive in nature, but can be stored as an element. [http://www.chemsoc.org/viselements/pages/data/graphic/ca_data.jpg]

  8. Alkaline Earth Metals • All form +2 ions. Click here for videos on the Alkaline Earth Metals [http://wps.prenhall.com/wps/media/objects/476/488316/Instructor_Resources/Chapter_09/FG09_34.JPG]

  9. p-Block Groups • Groups 13-16 named after the first element. • Boron Group 13 (3A) • +3 ions

  10. [http://wps.prenhall.com/wps/media/objects/602/616516/Media_Assets/Chapter19/Text_Images/FG19_TB03.JPG][http://wps.prenhall.com/wps/media/objects/602/616516/Media_Assets/Chapter19/Text_Images/FG19_TB03.JPG]

  11. p-Block Groups • Carbon Group 14 (4A) • No ion pattern because all have 4 valence electrons [http://wps.prenhall.com/wps/media/objects/602/616516/Media_Assets/Chapter19/Text_Images/FG19_02-09UN.JPG]

  12. p-Block Groups Nitrogen Group (-3 ions) Oxygen Group (-2 ions) [http://wps.prenhall.com/wps/media/objects/602/616516/Media_Assets/Chapter19/Text_Images/FG19_02-09UN.JPG]

  13. p-Block Groups • Both Nitrogen and Oxygen are diatomic as elements (N2 & O2)

  14. Halogens • Group 17 (7A) • Some are diatomic when alone as an element. [http://wps.prenhall.com/wps/media/objects/602/616516/Media_Assets/Chapter01/Text_Images/FG01_02-04UN.JPG]

  15. The “Super Seven” are all diatomic when alone as elements!

  16. Halogens • Exist as gas, liquids, and solids with distinct colors.

  17. Halogens • Most reactive non-metals on table and increases from I To F. • All form –1 ions. • Most form salts by combining with alkali metals. (+1 ion with –1 ion) Click here for Halogen reactivity video Click here for videos on the Halogens

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