Californium
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Californium is a radioactive metallic element discovered in 1950 at the University of California, Berkeley by bombarding curium with alpha particles. It has an atomic mass of 15,10 u, a melting point of 1173 K, a boiling point of 1743 K, and a density of 15,1 g/cm3. Californium is an actinide element, the sixth transuranium element synthesized, and the heaviest element to occur naturally on Earth with heavier elements only produced synthetically.
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Californium
- 1. 98 Californio – Californium Mass: 15,10 u 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f10 Melting point: 1173 K Boiling point: 1743 K Density: 15,1 g/cm3 Discovery: 1950 Californium is a radioactive metallic chemical element. The element was first made at the University of California, Berkeley in 1950 by bombarding curium with alpha particles (helium -4 ions). It's an actinide element, the sixth transuranium element to be synthesized, and has the second-highest atomic mass of all the elements that have been produced in amounts large enough to see with the unaided eye. It's the heaviest element to occur naturally on Earth; heavier elements can only be produced by synthesis.