A new study has uncovered a surprising role for calcium in shaping life’s earliest molecular structures, shedding light on ...

They have a giant lattice structure with strong ionic bonds. A lot of energy is needed to overcome these bonds. Simple molecular substances - Edexcel A covalent bond is a shared pair of electrons.

A new study led by researchers at the Earth-Life Science Institute (ELSI) at Institute of Science Tokyo has uncovered a ...