Nihonium is element 113, a post-transition of the p block, in group 13, period 7. Its ground-state configuration is [Rn] 5f14 6d10 7s2 7p1, and it usually shows the oxidation states 0.
It was discovered in 2004.
Name origin: Nihon, a Japanese name for Japan, where the element was first synthesized.
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