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:
“I made a list of things I have
to remember and a list
of things I want to forget,
but I see they are the same list.”
—Linda Pastan (b. 1932)
“A man’s interest in a single bluebird is worth more than a complete but dry list of the fauna and flora of a town.”
—Henry David Thoreau (1817–1862)
“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 it—and tries to live off philosophy.”
—Friedrich Nietzsche (1844–1900)
“The elements of success in this business do not differ from the elements of success in any other. Competition is keen and bitter. Advertising is as large an element as in any other business, and since the usual avenues of successful exploitation are closed to the profession, the adage that the best advertisement is a pleased customer is doubly true for this business.”
—Madeleine [Blair], U.S. prostitute and “madam.” Madeleine, ch. 5 (1919)