Replace the question mark with a number
MATH PUZZLE: Can you replace the question mark with a number?Correct answers: 638
The first user who solved this task is Donya Sayah30.
#brainteasers #math #riddles
HahniumIn 1970, the discovery of hahnium, element 105, was announced at the American Physical Society meeting in Washington, D.C. The work was done by Albert Ghiorso at the Lawrence Radiation Laboratory at the University of California, Berkeley, California. The artifically produced element had an atomic mass of 260, and was named for the German physicist Otto Hahn. |