New Area of focus: Chemical Bonding Copyright © 2010 Ryan P. Murphy.

• New Area of focus: Chemical Bonding

Copyright © 2010 Ryan P. Murphy


• Chemical bonds: the attraction that holds atoms together as a result of rearranging their electrons.

• Atoms try to have 8 valence electrons (or 2 for H and He),

so they will either increase their number or decrease it to get closer to 8. This makes them chemically bonded to other atoms.

• Ionic, Covalent, Metallic–Covalent – Share electrons–Ionic – Gain or lose electrons (transfer)

–Metallic- Many free electrons


“My name is Bond.”


“Covalent Bond.”


• Ionic, Covalent, Metallic–Covalent – Share electrons–Ionic – Gain or lose electrons (transfer)

–Metallic- Many free electrons


Covalent bonding occurs by a sharing of valence electrons


Covalent bonding occurs by a sharing of valence electrons (Strongest) (SPONCH).


Ionic bonding (+/-) Bonds created by the attraction of opposite charges.


“Ionic Please.” “Transferred.” “Not shared.”

• Ionization: The process of removing electrons from an atom to form ions.


• Ionic - One atom strips electron from the other so both are now stable. Held then by + / - charge


Ionic Bonding: Forms crystal lattice.


• Metallic bonding: The bonding between atoms within metals. The sharing of many free electrons.


Most metal atoms bond with other types of metal to form alloys- a mixture of two or more metals.

Metal atoms lose their valence electrons and become positively charged ions.

The free electrons float around the atoms in a “sea of electrons”. The electrons are attracted to the positively charged atoms.

The” sea of electrons” can explain the malleability, luster, high electrical conductivity, and high thermal conductivity of metals.

• Remember: • Covalent – Sharing an Electron many of

the SPONCH elements.


the SPONCH elements.• Ionic – Opposite charges + / -


the SPONCH elements.• Ionic – Opposite charges + / -• Metallic – Many free floating electrons

• Quiz Wiz: Label as either…• Covalent, Ionic, or Metallic 1-10


• Bonus: Name the actor and movie character.

• Answers! Quiz Wiz: Label as either, Covalent, Ionic, or Metallic 1-10


• Bonus: Name the actor and movie character.

• Bonus: Name the actor and movie character. Sean Connery as James Bond

New Area of focus: Chemical Bonding Copyright © 2010 Ryan P. Murphy.

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