A longstanding mystery of the periodic table involves a group of unique elements called lanthanides. Also known as rare earth ...

Article citations More>> Abramowitz, M. and Stegun, I.A. (1965) Handbook of Mathematical Functions with Formulas, Graphs, and Mathematical Tables. Dover. has been cited by the following article: TITLE ...

The periodic table of elements, or Mendeleev’s table, was created in 1869 by Russian chemist Dmitri Mendeleev. This table organizes all known chemical elements by their atomic number, or the ...