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Nihonium is a synthetic chemical element with symbol Nh and atomic number 113. It is extremely radioactive; its most stable known isotope, nihonium-286, has a half-life of about 10 seconds. In the periodic table, nihonium is a transactinide element at the intersection of period 7 and group 13. Its creation was reported in 2003 by a Russian–American collaboration at the Joint Institute for Nuclear Research in Dubna, Russia, and in 2004 by a team of Japanese scientists at Riken in Wakō, Japan. The discoveries were confirmed by independent teams working in the United States, Germany, Sweden, and China. In 2016 the element was officially recognised and naming rights were assigned to Riken, as they were judged to have been first to observe it. The name, approved in the same year (announcement pictured), derives from a Japanese word for Japan, Nihon. Few details are known about nihonium, as it has only been formed in very small amounts that decay away within seconds.

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Nihonium は、Nh の記号と原子番号 113 の合成化学要素です。それは非常に放射性;その最も安定した既知の同位体、nihonium-286 は、約 10 秒の半減期を有する。周期表の nihonium は期間 7 のグループ 13 交差点超アクチノイド元素です。その作成はロシア語 – 同盟によって 2003 年に報告されました。

BACK INTO ENGLISH

Nihonium is a synthetic chemical element of the Nh symbol and atomic number 113. It is extremely radioactive; its most stable known isotope is nihonium-286, with a half-life of approximately 10 seconds. The periodic table nihonium Group 13 of the period 7 is crossing transactinide element. Its creation, Russia – the Alliance

INTO JAPANESE

Nihonium は、Nh 記号と原子番号 113 の合成化学要素です。それは非常に放射性;その最も安定した知られている同位体は nihonium-286、10 秒程度の半減期を有するです。期間 7 の周期表 nihonium グループ 13 超アクチノイド元素を横断です。作成、ロシア-同盟

BACK INTO ENGLISH

Nihonium is a synthetic chemical element of the Nh symbol and atomic number 113. It is extremely radioactive; its most stable known isotope has a half-life of approximately 10 seconds to nihonium-286 is. Period 7 periodic table nihonium Group 13 is crossing the transactinide element. Creating a Russia-Alliance

INTO JAPANESE

Nihonium は、Nh 記号と原子番号 113 の合成化学要素です。それは非常に放射性;その最も安定した知られている同位体 nihonium 286 に 10 秒程度の半減期を持っています。期間 7 周期表 nihonium グループ 13 超アクチノイド元素を横断です。ロシア同盟を作成します。

BACK INTO ENGLISH

Nihonium is a synthetic chemical element of the Nh symbol and atomic number 113. It is extremely radioactive; its most stable known isotope nihonium 286 has a half-life of approximately 10 seconds. Period 7 periodic table nihonium Group 13 is crossing the transactinide element. Create a Russia ally.

INTO JAPANESE

Nihonium は、Nh 記号と原子番号 113 の合成化学要素です。それは非常に放射性;その最も安定した知られている同位体 nihonium 286 は約 10 秒の半減期を有する。期間 7 周期表 nihonium グループ 13 超アクチノイド元素を横断です。ロシアの同盟国を作成します。

BACK INTO ENGLISH

Nihonium is a synthetic chemical element of the Nh symbol and atomic number 113. It is extremely radioactive; its most stable known isotope nihonium 286 has a half-life of approximately 10 seconds. Period 7 periodic table nihonium Group 13 is crossing the transactinide element. Create an ally of Russia.

INTO JAPANESE

Nihonium は、Nh 記号と原子番号 113 の合成化学要素です。それは非常に放射性;その最も安定した知られている同位体 nihonium 286 は約 10 秒の半減期を有する。期間 7 周期表 nihonium グループ 13 超アクチノイド元素を横断です。ロシアの同盟国を作成します。

BACK INTO ENGLISH

Nihonium is a synthetic chemical element of the Nh symbol and atomic number 113. It is extremely radioactive; its most stable known isotope nihonium 286 has a half-life of approximately 10 seconds. Period 7 periodic table nihonium Group 13 is crossing the transactinide element. Create an ally of Russia.