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Chemical Bonding

Chemical Bonding. Chapter 12.1. Standards :. GLE 0807.9.2 GLE 0807.9.4 GLE 0807.9.6. Key concepts:. Describe chemical bonding Identify the number of valence electrons in an atom Predict whether an atom is likely to form bonds. Key Vocabulary:. Chemical bonding Chemical bond

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Chemical Bonding

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  1. Chemical Bonding Chapter 12.1

  2. Standards: • GLE 0807.9.2 • GLE 0807.9.4 • GLE 0807.9.6

  3. Key concepts: • Describe chemical bonding • Identify the number of valence electrons in an atom • Predict whether an atom is likely to form bonds

  4. Key Vocabulary: • Chemical bonding • Chemical bond • Valence electrons

  5. Chemical Bond: What is a compound? What is a bond? What part of the atom is in charge of bonds? • Chemical bonding is the joining of atoms to form new substances. • Think making compounds. • What do compounds look like? • Chemical bond is an interactions that holds 2 atoms together. • This happens when: • Electrons are shared • Electrons are gained • Electrons are lost

  6. Picture time!

  7. Review of Atoms NO PPEN What is a valence electron? Where do we find valence electrons? • How do we determine the number of electrons? • Remember: atomic number = number of protons • SO protons = electrons because atoms have NO CHARGE • Where do we find electrons? • On rings/orbitals/shells! • Valence electrons = electrons on outermost shell

  8. Picture time!

  9. Picture time!

  10. To Bond or to not Bond… What is a compound? What is a bond? What do periods tell us? What do groups tell us? • Remember that not all elements will bond! • Noble gases do not like to form chemical bonds because they are completely full! • REMEMBER RULE OF 8! • Elements are considered full when they have 8 electrons on the outermost ring.

  11. Picture time! Remember bonding occurs when electrons: Electrons are shared Electrons are gained Electrons are lost

  12. Pearls of Wisdom: • Chemical bonding is the joining of atoms to form new substances. A chemical bond is an interaction that holds two atoms together. • A valence electron is an electron in the outermost energy level of an atom. • Most atoms form bonds by gaining, losing, or sharing electrons until they have 8 valence electrons. Atoms of some elements need only 2 electrons to fill their outermost level.

  13. Homework: • Questions on Page 313 • #2-7 • Any questions about your t-shirt design?

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