Chapter 2 Atoms Elements Bonds Coordination Polyherda Flashcards
1angstrom=?
10^-10m
Atomic number location
Lower left
How many are naturally occurring elements
92(H to U)
Atomic mass number is expressed as
Amu
Atomic mass number is written at
Upper left
Number of neutrons written at
Lower right
Simple rule for remembering sequence In which e are added to e cloud
Diagonal rule
Elements that possess stable e configuration, do not bind or react
Noble gases(he ne AR kr)
Diff anions and cations in crystal struct tends to be small
Rule of parsimony
Island silicate (sio4) ^-4
Nesosilicate
Bow tie silicate/double tetrahedral unit (si2o7) ^-6
Soro
Ring silicate (si6o18) - 12
Cyclo
Infinite single tetrahedron (si2o6) - 6
Single chain inosilicate
Infinite double chain (si4o11) 6-
Double chain inosilicate
Infinite sheet (si2o5) - 2
Phyllo