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8th Grade-Ch. 1 Sec. 2 Atoms Bonding & The Periodic table
8th Grade-Ch. 1 Sec. 2 Atoms Bonding & The Periodic table
8th Grade-Ch. 1 Sec. 2 Atoms Bonding & The Periodic table
8th Grade-Ch. 1 Sec. 2 Atoms Bonding & The Periodic table
8th Grade-Ch. 1 Sec. 2 Atoms Bonding & The Periodic table
8th Grade-Ch. 1 Sec. 2 Atoms Bonding & The Periodic table
8th Grade-Ch. 1 Sec. 2 Atoms Bonding & The Periodic table
8th Grade-Ch. 1 Sec. 2 Atoms Bonding & The Periodic table
8th Grade-Ch. 1 Sec. 2 Atoms Bonding & The Periodic table
8th Grade-Ch. 1 Sec. 2 Atoms Bonding & The Periodic table
8th Grade-Ch. 1 Sec. 2 Atoms Bonding & The Periodic table
8th Grade-Ch. 1 Sec. 2 Atoms Bonding & The Periodic table
8th Grade-Ch. 1 Sec. 2 Atoms Bonding & The Periodic table
8th Grade-Ch. 1 Sec. 2 Atoms Bonding & The Periodic table
8th Grade-Ch. 1 Sec. 2 Atoms Bonding & The Periodic table
8th Grade-Ch. 1 Sec. 2 Atoms Bonding & The Periodic table
8th Grade-Ch. 1 Sec. 2 Atoms Bonding & The Periodic table
8th Grade-Ch. 1 Sec. 2 Atoms Bonding & The Periodic table
8th Grade-Ch. 1 Sec. 2 Atoms Bonding & The Periodic table
8th Grade-Ch. 1 Sec. 2 Atoms Bonding & The Periodic table
8th Grade-Ch. 1 Sec. 2 Atoms Bonding & The Periodic table
8th Grade-Ch. 1 Sec. 2 Atoms Bonding & The Periodic table
8th Grade-Ch. 1 Sec. 2 Atoms Bonding & The Periodic table
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8th Grade-Ch. 1 Sec. 2 Atoms Bonding & The Periodic table

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  • 1. CH. 1 SEC. 2 ATOMS, BONDING & THE PERIODIC TABLE
  • 2.  
  • 3.  
  • 4. Silicon has 14 electrons. The 4 electrons that orbit the nucleus in the outermost "valence" energy level are given to, accepted from, or shared with other atoms. Silicon Si
  • 5.  
  • 6.  
  • 7. valence electrons =
        • electrons farthest from nucleus
        • involved in bonding
  • 8.  
  • 9. electron dot diagram (Lewis dot structure)
    • way of showing # valence electrons
  • 10.  
  • 11. Patterns of Valence Electrons After the number of valence electrons reaches 8, a new period begins.
  • 12.
    • Much like people, most atoms don't like to live solitary existences.
    • They need to COME TOGETHER with other atoms to lead more stable, happier lives. 
    • This process of coming together is called chemical bonding.
  • 13. chemical bond
    • force that holds atoms together
    • electrons may be transferred from one atom to another, or they may be shared between atoms
  • 14.  
  • 15.  
  • 16.
    • # of protons in nucleus
      • elements arranged in order of increasing atomic #
    atomic number
  • 17.  
  • 18.
    • group (family) = column (up & down)
    • period = row
  • 19.  
  • 20. alkali metals
    • Group 1
    • 1 valence electron
    • react w/ other atoms by losing valence electron
  • 21. halogen family
    • Group 17
    • 7 valence electrons
    • react w/ other atoms by gaining 1 electron
  • 22. noble gases
    • Group 18
    • 8 valence electrons
    • (except helium has 2)
    • don’t react very easily with other atoms
  • 23. NOBLE GASES YouTube video-Periodic Table

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