Arsenic

Arsenic or as

• atomic number is 33

• atomic weight is 74.92159

• color is Silver

• state at 298.15°k is Gas

• classification is Metalloid

• date of discovery is Ancient

• density kg/m^3 is 5776

• melting point is 1081.15

• boiling point is 1743 K

• group is Metalloid

• Number of neutron is 42