出典:Wikipedia
出典:『Wikipedia』 (2011/01/31 10:04 UTC 版)
Arsenide is an arsenic anion with the charge −3. The trianion is formed by the reduction of arsenic by three electrons. For example heating arsenic powder with excess sodium gives sodium arsenide (Na3As). The anions have no existence in solution since they are extremely basic. These solid salts have very high lattice energies.