Source: Curium does not exist in nature. It is a synthetic element and it is produced in nuclear reactors by bombarding plutonium with neutrons. Isotopes: Curium has 15 isotopes whose half-lives are known, with mass numbers 238 to 252. Curium has no naturally occurring isotopes.
2017 Rolls-Royce Ghost Series II. Everything in life is relative, and perhaps no car illustrates this point as effectively as the Rolls-Royce Ghost. While it's technically the entry-level Rolls-Royce model, the Ghost's $250,000 base price puts it in the stratosphere of the overall automotive market.
Without a doubt, rappersâ second choice in terms of luxury vehicles is classy British brand Rolls-Royce. In spite of owning the worldâs most expensive car, the Maybach Exelero, Jay-Z also owns a $400 000 Rolls-Royce Phantom (alongside a Ferrari and a Porsche Carrera). Convertible versions of the same brand are currently being driven by Rick Ross, Tyga and T-Pain.