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Sono stati battezzati i quattro nuovi elementi entrati ufficialmente a far parte con i numeri 113, 115, 117 e 118 della tavola periodica la cui prima versione fu creata dallo scienziato russo Mendeleev nel 1869 e che tutti abbiamo studiato a scuola. Le unioni internazionali di fisica e chimica hanno infatti approvato le denominazioni proposte, rispettivamente nihonio (da Nihon, ovvero Giappone), Moscovio (da Mosca), Tennessinio (da Tennessee) e Oganessio (dal nome del professor Yuri Oganessian).
L'esistenza del primo era stata evidenziata a tre riprese fra il 2004 e il 2012 da Kosuke Morita, il secondo, il terzo e il quarto devono la loro paternità a laboratori russi e statunitensi.
pon/ATS
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