ruthenium

technetium$\longleftarrow$ 44 $\longrightarrow$rhodium

Pronunciation

• enPR: ro͞o-thē′-nē-əm, IPA ^(key): /ruːˈθiːniəm/

Noun

Singular ruthenium

Plural none

1. (uncountable) Ruthenium is a metallic (meaning made of metal) element with an atomic number of 44 and symbol Ru.