Element, artificial
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Element not or no longer occurring on earth, but artificially
generated by nuclear reaction. The artificial elements include the
elements technetium (atomic number Z = 43), promethium (Z = 61) and
the tran-suraniums (Z > 92). A total of 118 elements are therefore
known today. In the 70’s, it could be verified that very low
traces of plutonium occur in nature resulting from natural nuclear
fissions (about 1 pluto-nium atom per 1012 uranium atoms).
Element name |
Symbol |
Atomic number |
Technetium |
Tc |
43 |
Promethium |
Pm |
61 |
Neptunium |
Np |
93 |
Plutonium |
Pu |
94 |
Americium |
Am |
95 |
Curium |
Cm |
96 |
Berkelium |
Bk |
97 |
Californium |
Cf |
98 |
Einsteinium |
Es |
99 |
Fermium |
Fm |
100 |
Mendelevium |
Md |
101 |
Nobelium |
No |
102 |
Lawrencium |
Lw |
103 |
Rutherfordium |
Rf |
104 |
Dubnium |
Db |
105 |
Seaborgium |
Sb |
106 |
Bohrium |
Bh |
107 |
Hassium |
Hs |
108 |
Meitnerium |
Mt |
109 |
Darmstadtium |
|
110 |
Roentgenium |
|
111 |
Copernicium |
|
112 |
Still without name |
|
113 |
Flerovium |
|
114 |
Still without name |
|
115 |
Livermorium |
Lv |
116 |
Still without name |
|
117 |
Still without name |
|
118 |
List of artificial elements
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11 - 15 March 2018
Munich, Germany
30 September - 04 October 2018
Prague, Czech Republic |
