Subject
tin
lead
20
copper
14
aluminum
13
zinc
13
metal organic compound
12
germanium
10
nonferrous metal
10
statistical aspect
9
titanium
5
cobalt
4
iron
4
molybdenum
4
nickel
4
thallium
4
zirconium
4
arsenic
3
chromium
3
manganese
3
silicon
3
thorium
3
tungsten
3
vanadium
3
antimony
2
beryllium
2
bismuth
2
cadmium
2
carbon
2
emission
2
gallium
2
gold
2
hafnium
2
halide
2
inorganic compound
2
magnesium
2
mercury
2
metal
2
organic compound
2
selenium
2
silver
2
strontium
2
tantalum
2
technetium
2
thermodynamic properties
2
transition metal
2
uranium
2
vinyl compound
2
ab initio calculation
1
alkali metal
1
alloy
1
more ...