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. |
Read more about this topic: Synthetic Element
Famous quotes containing the words list of, list, synthetic and/or elements:
“Thirtythe promise of a decade of loneliness, a thinning list of single men to know, a thinning brief-case of enthusiasm, thinning hair.”
—F. Scott Fitzgerald (18961940)
“The advice of their elders to young men is very apt to be as unreal as a list of the hundred best books.”
—Oliver Wendell Holmes, Jr. (18411935)
“In every philosophical school, three thinkers succeed one another in the following way: the first produces out of himself the sap and seed, the second draws it out into threads and spins a synthetic web, and the third waits in this web for the sacrificial victims that are caught in itand tries to live off philosophy.”
—Friedrich Nietzsche (18441900)
“It is a life-and-death conflict between all those grand, universal, man-respecting principles which we call by the comprehensive term democracy, and all those partial, person-respecting, class-favoring elements which we group together under that silver-slippered word aristocracy. If this war does not mean that, it means nothing.”
—Antoinette Brown Blackwell (18251921)