Section 5: Bonding in Metals

Ductile

can be bent easily & pulled into wires.

Malleable

can be rolled into this sheets.

Alloy

is a material made ot two or more elements that has the properties of a metal.

Metallic Bonding

is the attraction between a positive metal ion & the electrons surrounding it. When they combined chemically they usually lose valence electrons becoming postively charged metal ions & metal valence electrons are loosely held.

Heat Conductivity

is the freedom of motion of electrons in metals makes it easier for thermal energy to be transferred along the crystal.

Luster

is when valence electrons absorb the light and then give it off again.

Electrical Conductivity

is where metals conduct electricity easily because the electrons in ametal crystal can move freely among the atoms.

"Sea of Electrons" model

is where solid metals explains their ability to conduct heat & electricity, which makesit easier for them to to change shape & gives them their luster.

Metals

most have 1, 2, or 3 valence electrons, exist as crystal, are very close together in specific arrangement, postively charged ions, & valence electrons are free to drift.