proton=33 Electrons=33 Neutrons = 42
Atomic mass: 74.9216
Density: 5.72 g/L
Electrons: [Ar] 3d10 4s2 4p3
Melting point: 1090 K
Boiling point: 887 K
Discovered: Ancient times
Arsenic is very toxic
Created with images by James St. John - "Gold-quartz-sulfide hydrothermal vein (Winnemucca District, northern Nevada, USA)" • Science Activism - "033 Arsenic - Periodic Table of Elements" • Michael Branson Smith - "Toxic"
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