Arsenic

Symbol: Ace
Atomic number: 33
atomic mass: 74,922 g/mol
Number of charges: 3, 5
Separation equivalent: 9.316 mg/amine (3); 15.527 mg/amine (5)
Density: 5,72 g/cm3 (grey), 1,97 g/cm3 (yellow), 4,7-5,1 g/cm3 (black)
Standard potential: 0.240 V
Melting point: 816.85 °C
Electronegativity: 2.18 (Pauling scale)