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:
“Feminism is an entire world view or gestalt, not just a laundry list of women’s issues.”
—Charlotte Bunch (b. 1944)
“Every morning I woke in dread, waiting for the day nurse to go on her rounds and announce from the list of names in her hand whether or not I was for shock treatment, the new and fashionable means of quieting people and of making them realize that orders are to be obeyed and floors are to be polished without anyone protesting and faces are to be made to be fixed into smiles and weeping is a crime.”
—Janet Frame (b. 1924)
“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 Laws of Nature are just, but terrible. There is no weak mercy in them. Cause and consequence are inseparable and inevitable. The elements have no forbearance. The fire burns, the water drowns, the air consumes, the earth buries. And perhaps it would be well for our race if the punishment of crimes against the Laws of Man were as inevitable as the punishment of crimes against the Laws of Nature—were Man as unerring in his judgments as Nature.”
—Henry Wadsworth Longfellow (1807–1882)