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Element: arsenic

Name : arsenic

Symbol : As

Atomicnumber : 33

Relativeatomicmass : 74.921595 (6)

Standardstate : solid at 298 K

Appearance : metallic grey

Classification : Semi-metallic

Groupinperiodictable : 15

Groupname : Pnictogen

Periodinperiodictable : 4

Blockinperiodictable : p

Shellstructure : 2.8.18.5

CASRegistry : 7440-38-2

Description : Elemental arsenic occurs in two solid modifications: yellow, and grey or metallic, with specific gravities of 1.97, and 5.73, respectively.

Name : arsenic

Symbol : As

Atomicnumber : 33

Relativeatomicmass : 74.921595 (6)

Standardstate : solid at 298 K

Appearance : metallic grey

Classification : Semi-metallic

Groupinperiodictable : 15

Groupname : Pnictogen

Periodinperiodictable : 4

Blockinperiodictable : p

Shellstructure : 2.8.18.5

CASRegistry : 7440-38-2

Description : Elemental arsenic occurs in two solid modifications: yellow, and grey or metallic, with specific gravities of 1.97, and 5.73, respectively.