Strontium is a metal in group IIA of the periodic table with atomic number 38, an atomic weight of 87.62, and a density of 2.6 Mg/m 3. Its melting point is 768 C, and it boils at 1380 C. The ...

A little-known element is shedding light on the transatlantic slave trade. Researchers have assembled a map of strontium, a naturally occurring element, across sub-Saharan Africa. These data can ...