Search results for "Protactinium(IV) oxide" - New World Encyclopedia

Protactinium
Protactinium (chemical symbol Pa, atomic number 91) is a member of ... ** protactinium(IV) oxide (PaO2) ** protactinium(V) oxide (Pa2O5) ...

9 KB (1,150 words) - 08:16, 2 December 2022
Praseodymium
when exposed to air, it develops a green oxide coating that spalls off, ... ** praseodymium(IV) fluoride (PrF4) * Bromides ** praseodymium(III ...

12 KB (1,535 words) - 22:14, 30 November 2022
Uranium
The use of uranium, in its natural oxide form, dates back to at least ... assumed the yellow substance was the oxide of a yet-undiscovered element ...

48 KB (6,867 words) - 15:33, 16 January 2024