Which element has the highest melting point? (1) tantalum (3) osmium
(2) rhenium (4) hafnium

Which of these best describes an ionic bond?

Type the letter that represents the correct location for each particle type below.

One way that radioactive waste is treated is by burying it in repositories. the repositories are found only in states with very low populations. true or false? a. trueb. false(also i meant to put high school but it put down middle school instead)