Post on 06-Feb-2016
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PGCC CHM 101 Sinex
Periodic Table of the Elements
The Chemist’s Organizational Chart
Los Alamos National Laboratory's Chemistry DivisionPeriodic Table of the Elements
metals non-metals
transition metals
+1+2 +3 -3 -2 -1
noblegases
http://pearl1.lanl.gov/periodic/default.htm
atomic numberatomic mass
typical charge on ion in binary compound
Modified from http://www.cem.msu.edu/~djm/cem384/ptable.html
gases liquids
105Db
solids
107Bh
Physical States at Room Conditions
man-made elements
not found on Earth
natural elements
105Db
107Bh
Natural vs. Man-Made Elements
large quantities
ultratrace amounts
All other elements have no known biological function.
Geoff Rayner-Canham, Descriptive Inorganic Chemistry, 2nd ed., Freeman (2000)
105Db
107Bh
Biologically Important Elements
Elements considered particularly toxic
105Db
107Bh
toxic
Geoff Rayner-Canham, Descriptive Inorganic Chemistry, 2nd ed., Freeman (2000)
diatomic tetratomic octatomic
All other free elements are atomic in nature.
105Db
107Bh
Molecular Nature of Free Elements
no stable forms
105Db
107Bh
All Isotopes Radioactive
s block p block
d block
f block
105Db
107Bh
Electronic Structure
s block p block
105Db
107Bh
Valence Electronsfor group A elements
ns1
ns2
ns 2np 1ns 2np 2
ns 2np 3
ns 2np 4ns 2np 5
ns 2np 6
3A 4A 5A 6A 7A1A
2A
8A
Group B
+1+2
+3 -3 -2 -10
± 4Charge on stable
monatomic ion
Period number gives shell (n)
105Db
107Bh
Hydride Chemistry (binary hydrogen
compounds)
3A 4A 5A 6A 7A1A
2A
8A
Group B
ionic
metallic
covalentsalts with H-
solidsmostly gases, some liquids
polymeric
interstitial H2
molecules with +1chains with H-to-H bonds
For the best interactive and informative periodic table
see WebElements.
Click on the element symbol and then use the menu to the left to select
information.