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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