Select 'Radioactivity' category and enter value. Choose units from list: Millicurie (mCi) and Megabecquerel (Mbq). Calculator supports basic arithmetic operations and mathematical functions
All elements can have radioactive isotopes. Radioactive elements form naturally from stars and supernova explosions. Nuclear fission produces fission products and activation products. Synthetic elements are created in reactors and particle accelerators
Anders Celsius introduced Celsius temperature scale in 1744. Daniel Fahrenheit created first accurate thermometer in 1736. Michael Faraday discovered electricity and magnetism in 1831. Pierre Curie discovered radioactivity in 1898. Marie Curie won Nobel Prize in 1903 for radioactivity
Born in Paris in 1859 to French Huguenot Protestant parents. Showed strong aptitude for mathematics and geometry from early teens. Earned Bachelor of Science in mathematics at age 16. Obtained physical sciences license from Sorbonne at age 18
Potassium-40 is a radioactive isotope with a half-life of 1.25 billion years. Makes up about 0.012% of total potassium in nature. Undergoes three types of radioactive decay
Radon was discovered in 1899 by Rutherford and Owens as a radioactive noble gas. It is colorless, odorless, and densest noble gas at room temperature. Radon has no stable isotopes, with 222Rn being the most stable (3.825 days)