Transuranium element

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Chemical element in the classification of elements, the atomic number of which is greater than 92, that of uranium. Except for the plutonium isotopes Pu 244 (half-life about 80 million years) and Pu 239 (continuous reformation in uranium by neutron capture in U 238 by neutrons from the spontaneous fission of U 238) detected in very small quantities, all transuranium elements must be produced artifi-cially.

Element name	Symbol	Atomic no.
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	Ds	110
Roentgenium	Rg	111
Still without name		112
Still without name		113
Still without name		114
Still without name		115
Still without name		116
Still without name		118

Transuranium elements

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