Periodic Table of the Elements The Chemists Organizational

Periodic Table of the Elements The Chemist’s Organizational Chart PGCC CHM 101 Sinex

Los Alamos National Laboratory's Chemistry Division Periodic Table of the Elements +1 +2 metals typical charge on ion atomic number in binary compound atomic mass transition metals non-metals +3 http: //pearl 1. lanl. gov/periodic/default. htm -3 -2 -1 noble gases

Physical States at Room Conditions gases 105 Db liquids 107 Bh Modified from http: //www. cem. msu. edu/~djm/cem 384/ptable. html solids

Natural vs. Man-Made Elements natural elements not found on Earth 105 Db 107 Bh man-made elements

Biologically Important Elements large quantities ultratrace amounts 105 Db 107 Bh Geoff Rayner-Canham, Descriptive Inorganic Chemistry, 2 nd ed. , Freeman (2000) All other elements have no known biological function.

Elements considered particularly toxic 105 Db 107 Bh Geoff Rayner-Canham, Descriptive Inorganic Chemistry, 2 nd ed. , Freeman (2000)

Molecular Nature of Free Elements diatomic 105 Db tetratomic octatomic 107 Bh All other free elements are atomic in nature.

All Isotopes Radioactive no stable forms 105 Db 107 Bh

Electronic Structure s block p block d block 105 Db 107 Bh f block

Valence Electrons for group A elements s block 0 2 ns 6 p 2 n ns -1 5 np 4 np 2 np 1 p 3 2 2 ns ns +3 ± 4 -3 -2 ns 2 np 2 n 2 1 A ns Charge on stable monatomic ion ns +1 ns 1 +2 p block 3 A 4 A 5 A 6 A 7 A 2 A Group B 105 Db 107 Bh Period number gives shell (n) 8 A

Hydride Chemistry (binary hydrogen compounds) ionic covalent polymeric salts with H- molecules with +1 chains with H-to-H bonds 1 A 2 A 8 A 3 A 4 A 5 A 6 A 7 A metallic interstitial H 2 Group B 105 Db 107 Bh solids mostly gases, some liquids

For the best interactive and informative periodic table see Web. Elements. Click on the element symbol and then use the menu to the left to select information.