17 Chemical Bonding Flashcards
attraction between two or more atoms
chemical bonds
electrons are the key to their ability to bond
chemical bonds
shiny elements; good conductors of electricity
metals
giant structure; atoms regular in pattern
metals
left-hand side (groups 1 and 2), middle (transition)
metals
electrons from outer shell of metal atoms become delocalized (free to move)
metallic bonding
strong ________ between positive ions and negative delocalized electrons results in strong metallic bonds
electrostatic attraction
strong attraction between oppositely-charged ions
metals and non-metals
react together to form ionic bonds
metals and non-metals
undergo metallic bonding
metals
metal atoms become positively-charged ions by losing electrons
ionic bonding
non-metal atoms become negatively-charged ions by gaining electrons
ionic bonding
oppositely-charged ions are very strongly attracted to each other
electrostatic attraction
ionic compounds are composed of regular repeating structure of ions
ionic lattice
held together by electrostatic attraction
ionic lattice
non-metals form strong covalent bonds with other non-metal atoms
covalent bonding
each atom contributes one electron from outer shell, but some atoms can react to make multiple ______
covalent bonding
strong but resulting simple mols. have low melting pts and boiling pts due to weak intermolecular forces between molecules
covalent bonding
found in earlier periods (group 4A - 7A; all of group 8A are intert, non-metals)
covalent bonding
formed when two atoms share pair of electrons
covalent bonding
each atom contributes one electron from outer shell, but some atoms can react to make multiple covalent bonds
covalent bonding
provides each atom with enough e- for full outer shell
covalent bonding
many atoms covalently bonded in reg arrangement
lattice
