Transcript Metallic Bonding

Crystal Binding (Bonding) Continued
More Details on Metallic Bonding
Chemical Bonds
Metallic Bonding
Metals are on the left of the Periodic Table.
Have few, loosely held valence electrons
If closely pack them can get up to 12 nearest neighbors
This causes a high density of valence e- around any
given atom & also a high density of neighbor atoms
around the loose valence eThese become a sea of mobile electrons
Metallic Bonding
• Atomic nuclei and inner filled electron shells
in a “sea” of electrons made up of unbound
valence electrons.
• Typical of elements with low ionization
potential. Valence electrons easily stripped.
• Yields minerals with minerals that are soft,
ductile/malleable, highly conductive (due to
easily mobile electrons).
• Non-directional bonding produces high
symmetry