Arsenic

Atomic number:33

Element name: As

Latin name:arsenicum

Electric configuration:[Ar] 3d10 4s2 4p3

Discoverer:Albertus Magnus

Isolator:75, 73, 82

Element atomic mass:74.9216 u

Density:1.97 g/cm3

Group: 15

Chemical properties:

Arsenic combines with oxygen more slowly at room temperatures, Arsenic
does not dissolve in water or most cold acids.

Arsenic is a metalloid.

33 isotopes : 3 of them are :

Arsenic - 75 : Protons : 33
Neutrons : 42
Electrons : 33
(Half Life : Stable)

Arsenic - 76 : Protons : 33
Neutrons : 43
Electrons : 33
(Half Life : 1.0942(7) days)

Arsenic - 77 : Protons : 33
Neutrons : 44
Electrons : 33
(Half Life : 38.83(5) hours)

Arsenic - 75

Physical Properties:

Shiny
Gray
Brittle
Solid in room temperature
Boiling point : 613 Degree Celsius (1135 Fahrenheit)
Melting point : 816.8 Degree Celsius (1502 Fahrenheit)

Where did it gets it’s name from:

The word arsenic comes from the Persian word "zarnikh

Uses:It is added to germanium and silicon to make transistors.

Also used to make LED lights, LEDs produce the lighted numbers
in hand-held calculators, clocks, watches, and a number of other electronic devices.

How is it Discovered?:

Arsenic compounds were mined by the early Chinese, Greek and
Egyptian civilisations

How is it extracted now?

The process of recovering arsenic from its ores is a common one
used with metals. The ore is first roasted The process of recovering
arsenic from its ores is a common one used with metals.

Health Effects: