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Element Lawrencium (Lr), Group 20, Atomic Number 103, f-block, Mass [262]. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
A radioactive metal, lawrencium is the eleventh transuranium element, the third transfermium, and the last member of the actinide series. Like all elements with atomic number over 100, lawrencium can only be produced in particle accelerators by bombarding lighter elements with charged particles.
Lawrencium is a chemical element with symbol Lr and atomic number 103. Classified as a n actinide, Lawrencium is a solid at room temperature.
Lawrencium is the eleventh transuranic element to be discovered. It is the last member of the actinide series. The expected density of lawrencium is around 16.6 g/cm 3 and is considered a heavy metal. Lawrencium is expected to be a volatile element and resembles lead in its volatility.
Lawrencium (Lr), synthetic chemical element, the 14th member of the actinoid series of the periodic table, atomic number 103. Not occurring in nature, lawrencium (probably as the isotope lawrencium-257) was first produced (1961) by chemists Albert Ghiorso, T. Sikkeland, A.E. Larsh, and R.M. Latimer.
Lawrencium is the 103rd element in the periodic table and has a symbol of Lr and atomic number of 103. It has an atomic weight of (262) and a mass number of 251. Lawrencium has one hundred three protons and one hundred forty-eight neutrons in its nucleus, and one hundred three electrons in seven shells.
10 Μαρ 2017 · Element Classification: Radioactive Rare Earth (Actinide Series) Name Origin: Named in honor of Ernest O. Lawrence, inventor of the cyclotron. Appearance: Radioactive, synthetic metal. Atomic Radius (pm): 282. Oxidation States: 3.
