Periodic health screening should be done to keep a check on the existing levels of these nutrients and dietary adjustments ...

The periodic table currently has 118 chemical elements (SN: 11/30/16). The five heaviest elements were all produced using a beam of calcium-48. That’s a variety, or isotope, ...

The chemical symbol for oxygen is O. Makes sense. Calcium gets repped by a Ca. Sounds good. Hydrogen ... “One answer lies in the cosmopolitan nature of the periodic table,” Kean wrote at Slate ...