What is the full form of "At"?
A. Astatine
B. Activation Transistor
C. Atomic Transition
D. Advanced Transformer
Answer: Option A
Solution(By Examveda Team)
Astatine is a chemical element with the symbol At and atomic number 85. It is the rarest naturally occurring element in the Earth's crust, occurring only as the decay product of various heavier elements. All of astatine's isotopes are short-lived; the most stable is astatine-210, with a half-life of 8.1 hours.This Question Belongs to Abbreviations >> Science Abbreviations
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