Filetype Power Point PPTX | Posted on 31 Aug 2022 | 4 years ago
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353x Filetype PPTX File size 0.86 MB Source: www.gardencity.k12.ny.us
Chemical Bond
A force that holds
groups of 2 or more
atoms together to
make them function
as a unit
Why?
Atoms form bonds to
obtain a “noble gas
configuration”
Octet Rule-
Atoms need to have 8
valence electrons
Types of Bonds
Metallic Bonds: specific only to metals
Ionic: results from transfer of electrons
Covalent: results from sharing of electrons
Coordinate covalent bond: when one atom
provides both electrons of the shared pair
Metallic Bonding
◦Occurs between like atoms of a metal in the free state
◦Valence e- are mobile (move freely among all metal atoms)
◦Positive ions in a sea of electrons
Metallic characteristics
◦ High mp temps, ductile, malleable, shiny
◦ Hard substances
◦ Good conductors of heat and electricity as (s) and (l)
Ionic
It is the
mobile
electrons that
allow the
metal to
conduct
electricity
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