Bonding rethink called for as new metavalent bond proposed
By 
Philip Ball2018-12-19T09:30:00
Combination of elements in the metalloid region of periodic table produces a bond with both metallic and covalent characteristics
One of the most basic facts that chemistry students learn is the distinct types of chemical bond in solid-state materials: covalent, ionic and metallic, as well as curiosities such as hydrogen bonding. But if a proposal in two recent papers holds up, they will soon need to be taught about another class: the metavalent bond.