A substance that cannot be broken down into another substance by chemical or physical means is called a

What semimetal can form four single covalent bonds.

Describing intermolecular forces use the drop down menus to match the type of intermolecular force to its name dipole dipole interactions dipole induced dipole interactions london dispersion forces hydrogen bond van der waals forces done

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?