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Lawrencium is a synthetic chemical element; it has symbol Lr (formerly Lw) and atomic number 103. It is named after Ernest Lawrence, inventor of the cyclotron, a device that was used to discover many artificial radioactive elements.
Element Lawrencium (Lr), Group 20, Atomic Number 103, f-block, Mass [262]. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
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 (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 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 has one hundred three protons and one hundred forty-eight neutrons in its nucleus, and one hundred three electrons in seven shells. It is located in group Transition metals, period seven and block f of the periodic table.
Classification: Metallic. Group in periodic table: 3. Group name: (none) Period in periodic table: 7. Block in periodic table: d. Shell structure: 2.8.18.32.32.9.2. CAS Registry: 22537-19-5. Lawrencium atoms have 103 electrons and the shell structure is 2.8.18.32.32.9.2.
