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- | IUPACName = Protactinium(IV) tetrabromide ...her|first2=T. J.|last3=Smith|first3=A. J.|title=Crystal Structures of some Protactinium Bromides|year=1968|pages=737|volume=217|journal=Nature|issue=5130|bibcode=1 ...3 KB (414 words) - 16:01, 8 February 2025
- [[Curium]] (Cm) usually forms compounds in the +3 oxidation state, although compounds with curium in the +4, +5 and +6 oxidation states are also known. ...enthalpies of formation of BaCmO3 and BaCfO3|journal=Journal of Alloys and Compounds|volume=200|issue=1–2|page=181|date=1993|doi=10.1016/0925-8388(93)90491-5|ur ...14 KB (2,076 words) - 23:55, 4 November 2024
- ...ed with the electropositive s-block metals. Covalent silicides and silicon compounds occur with hydrogen and the elements in groups 10 to 17. Many cluster compounds of lithium silicides are known, such as Li<sub>13</sub>Si<sub>4</sub>, Li<s ...58 KB (7,758 words) - 23:03, 27 September 2024
- | [[thorium|Th]]||[[protactinium|Pa]]||[[uranium|U]]||[[neptunium|Np]]||[[Plutonium|Pu]] ...ch as [[tin]] and [[antimony]], are clearly metals, but form only covalent compounds in the highest oxidation states: their aqua cations are restricted to their ...71 KB (10,784 words) - 22:25, 1 May 2024
- ...#f8f8f8; border-right:1px solid #f8f8f8; border-bottom:2px dashed black"|[[Protactinium|Pa]] ...{Citation needed|date=August 2024}} as are mercury vapour and many mercury compounds.<ref>{{harvnb|Kozin|Hansen|2013|p=80}}</ref> These five elements have a str ...150 KB (21,966 words) - 01:31, 25 February 2025