A soft, bluish-white metallic element occurring primarily in zinc, copper, and lead ores, that is easily cut with a knife and is used in nickel-cadmium storage batteries, rustproof electroplating, nuclear reactor shields, solders, and in low-friction, fatigue-resistant alloys. Atomic number 48; atomic weight 112.41; melting point 321.1°C; boiling point 767°C; specific gravity 8.65; valence 2. See
Periodic Table.