value
get
set "Transition Metals"
set "Na"
clear
Metals
Alkaline Metals
Li
Lithium
Na
Sodium
K
Potassium
Transition Metals
Sc
Scandium
Ti
Titanium
V
Vanadium
Halogens
F
Fluorine
Cl
Chlorine
Br
Bromine
He
Helium