(n,adj-no) chemical element
(P)
(n) rare element
(n) metallic element
(n) chemical symbol (i.e. H for hydrogen, O for oxygen, etc.)
(n) the four classical chemical elements (fire, earth, air and water)
(n) synthetic element
artificial element (i.e. technetium)
(n) transition element
transition metal
(n) transuranium element
transuranic element
super heavy element
(n) isotope
(n) a trace element
(n) rare earth elements
(n) (obsc) periodic table of the elements
(n) nitrogen group (group 15 of the periodic table)
(n) platinum group metals
platinum group elements
(n) a nonmetallic element
(n) radioactive element
(n) (obsc) periodic law
(n) transuranium element
transuranic element
super heavy element
(n) halogen family elements