Question
Download Solution PDFWhat is the atomic number of Lawrencium, a chemical element that is classified as the last member of the actinides?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is option 2.
Key Points
- Lawrencium is a chemical element with the symbol Lr and atomic number 103.
- It is classified as the last member of the actinide series.
- Lawrencium was first synthesized in 1961 by the Lawrence Berkeley National Laboratory.
- It is a synthetic element, which means it is not found naturally and must be created in a laboratory.
Additional Information
- The actinides are a series of 15 metallic elements from actinium (Ac) to lawrencium (Lr) in the periodic table.
- Lawrencium's most stable isotope is Lr-262, which has a half-life of about 3.6 hours.
- The element is named after Ernest Lawrence, the inventor of the cyclotron, a type of particle accelerator.
- As a synthetic element, lawrencium is primarily used for research purposes and has no significant commercial applications.
- Lawrencium, like other actinides, exhibits radioactive properties and must be handled with special precautions in a laboratory setting.
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