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 Electron Configuration  Oxygen vs. Neon Orbital Diagram for Neon Electron Configuration: 1s 2 2s 2 2p 6 Electron Configuration: 1s 2 2s 2 2p 4 Oxygen:

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Presentation on theme: " Electron Configuration  Oxygen vs. Neon Orbital Diagram for Neon Electron Configuration: 1s 2 2s 2 2p 6 Electron Configuration: 1s 2 2s 2 2p 4 Oxygen:"— Presentation transcript:

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2  Electron Configuration  Oxygen vs. Neon Orbital Diagram for Neon Electron Configuration: 1s 2 2s 2 2p 6 Electron Configuration: 1s 2 2s 2 2p 4 Oxygen: 2p orbital only has 4 electrons can hold 6 electrons Neon: Has a full 2p electron orbital or shell with 6 electrons

3  A concept of chemical bonding theory that atoms tend to have either an empty valence shell or full valence shell of 8 electrons. All atoms try to get an octet, 8 electrons in their outermost shell by either losing or gaining electrons. This is an attempt to have the electron configuration of a noble gas. * Valence shell: the electrons found in the outermost shell of an atom. OrbitalElectrons s2 p6 d10 f14

4  Most reactive elements  Outer s and p orbital that do not match the Noble gases will react to lose or gain an electron…so the outer orbital will be full.

5  Cation: atoms lose electrons  Usually metals  Anion: atom gains electrons  Usually non-metals  Ions form in order to achieve an octet (or as close as possible).  Ions have different properties than their parent atoms.

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10  Octet  Filled or half filled outer orbital  Fill the best they can

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13  Ionic bond: transfer of electrons (opposite charges attract, cations and anions) compound becomes electroneutral (+ = - no net charge)

14  Ionic bond form between sodium cations and chloride anions  Electrostatic attraction  crystals

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17  Do not consist of molecules  Bonds are strong, multiple attractions  High melting point and boiling point  Hard and Brittle  Conduct electricity (if ions are mobile, in other words melted or dissolved in water)

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19  Crystal lattice: regular pattern in which a crystal is arranged  Unit cell: the smallest portion of a crystal lattice that shows a 3-d pattern of the entire lattice

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