Question
Download Solution PDFWhat is the name of the 87th element on the periodic table that has no known biological role because it has a half-life of only 22 minutes?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is Francium. Key Points
- Francium is a highly radioactive metal.
- It is the second rarest element in the Earth's crust.
- It was discovered in 1939 by Marguerite Perey.
- It is named after France.
- Meitnerium (Mt) is a synthetic element.
- It was first synthesized in 1982.
- Dubnium (Db) was first synthesized in 1967.
- It is named after the Russian city of Dubna.
- Seaborgium (Sg) was first synthesized in 1974.
- It is named after Glenn T. Seaborg, a nuclear chemist.
Last updated on Jun 26, 2025
-> The Staff selection commission has released the SSC CHSL Notification 2025 on its official website on 23rd June 2025.
-> The SSC CHSL Apply Online 2025 has been started and candidates can apply online on or before 18th July.
-> The SSC has released the SSC CHSL exam calendar for various exams including CHSL 2025 Recruitment. As per the calendar, SSC CHSL Application process will be active from 23rd June 2025 to 18th July 2025.
-> The SSC CHSL is conducted to recruit candidates for various posts such as Postal Assistant, Lower Divisional Clerks, Court Clerk, Sorting Assistants, Data Entry Operators, etc. under the Central Government.
-> The SSC CHSL Selection Process consists of a Computer Based Exam (Tier I & Tier II).
-> To enhance your preparation for the exam, practice important questions from SSC CHSL Previous Year Papers. Also, attempt SSC CHSL Mock Test.
-> The UGC NET Exam Analysis 2025 for the exam conducted on June 25 is out.