Assertion: neptunium | /r/HasAspect | five oxidation states
Facets:
Source sentences:
text: Neptunium has five oxidation states (+3 to +7) producing different colors in solution:
text: Neptunium has four oxidation states - +3, +4, +5, and +6.
text: It has five oxidation states, +3 to +7, each with a different colour in solution, ranging from violet to yellow green.