Transuranium elements

Transuranium elements are radioactive elements having atomic number greater than 92
that is elements after uranium ,they are also called  Transuranic. These are not naturally
occurring except two neptunium and plutonium and those only in trace amounts.

Transuranic elements can be artificially generated synthetic elements, via nuclear reactors or particle accelerators. The half lives of these elements show a general trend of decreasing as atomic numbers increase.

Heavy transuranic elements are difficult and expensive to produce, and their prices increase rapidly with atomic number.   weapons-grade plutonium cost around $4,000/gram, and californium cost $60,000,000/gram.  Einsteinium is the heaviest transuranic element that has ever been produced in macroscopic quantities.

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
Copernicium	Cn	112
Nihonium	Nh	113
Flerovium	Fl	114
Moscovium	MC	115
Livermorium	Lv	116
Tennessine	Ts	117
Oganesson	Og	118