List of Synthetic Elements
The following elements do not occur naturally on Earth. All are transuranium elements and have atomic numbers of 99 and higher.
Element name | Chemical Symbol |
Atomic Number |
First definite synthesis |
---|---|---|---|
Einsteinium | Es | 99 | 1952 |
Fermium | Fm | 100 | 1952 |
Mendelevium | Md | 101 | 1955 |
Nobelium | No | 102 | 1966 |
Lawrencium | Lr | 103 | 1961 |
Rutherfordium | Rf | 104 | 1966 (USSR), 1969 (USA) * |
Dubnium | Db | 105 | 1968 (USSR), 1970 (USA) * |
Seaborgium | Sg | 106 | 1974 |
Bohrium | Bh | 107 | 1981 |
Hassium | Hs | 108 | 1984 |
Meitnerium | Mt | 109 | 1982 |
Darmstadtium | Ds | 110 | 1994 |
Roentgenium | Rg | 111 | 1994 |
Copernicium | Cn | 112 | 1996 |
Ununtrium | Uut | 113 | 2003 |
Flerovium | Fl | 114 | 1999 |
Ununpentium | Uup | 115 | 2003 |
Livermorium | Lv | 116 | 2000 |
Ununseptium | Uus | 117 | 2010 |
Ununoctium | Uuo | 118 | 2002 |
* Shared credit for discovery. |
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