Arsenic

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Arsenic

74.92160(2)
	As
33
1s²2s²2p⁶3s²3p⁶3d¹⁰4s² 4p³

[ ? ]

Metalloid:

Properties:

Steel-gray, brittle metal

Hazard:

Poisonous

Arsenic is a chemical element, having the chemical symbol As. Its atomic number (the number of protons) is 33. It has a standard atomic weight of 74.9216 g•mol⁻¹ and is a solid in its elemental form.

Arsenic is considered to be a member of the "Metalloid" class of element. At a pressure of 1 atm (101.325 kPa), it has a sublimation point of 613 °C and, at a pressure of 28 atm, it has a melting point of 817 °C.^[1]

References[edit]

↑ Note: If the boiling point was also measured at a pressure of 28 atm, it would be higher than the melting point.

[1] Note: If the boiling point was also measured at a pressure of 28 atm, it would be higher than the melting point.

[1]