Interesting Facts
Neptunium dioxide contributes to the α-decay of 241Am, reducing its usual half-life an untested but appreciable amount. The compound has an interestingly low specific heat capacity (900 K, compared with uranium dioxide's specific head capacity of 1400 K), an abnormality theorized to stem from its 5f electron count. Another unique trait of neptunium dioxide is its "mysterious low-temperature ordered phase". Mentioned above, it references an abnormal level of order for an actinitde dioxie complex at low temperature. Further discussion of such topics could indicate useful physical trends in the actinides.
Read more about this topic: Neptunium(IV) Oxide
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