Arsenic

From CreationWiki, the encyclopedia of creation science

NSCS ProjectThis article is a work in progress by a student at North Sound Christian School.
Please do not edit the article until this banner is removed.

Arsenic
General Info
Atomic Symbol	As
Atomic Number	33
Atomic Weight	74.9 g/mol74.9 amu
Chemical series	metalloids
Appearance	metallic gray
Group, Period, Block	15, 4, p
Electron configuration	[Ar] 3d10 4s2 4p3
Electrons per shell	2, 8, 18, 5
CAS number	[[CAS number::[7440-38-2]]]
Physical properties
Phase	solid
Density	5.727  g·cm−3 g/ml
Melting point	1090K816.85 °C 1,502.33 °F 1,962 °R
Boiling point	subl. 887K613.85 °C 1,136.93 °F 1,596.6 °R
Isotopes of Arsenic
iso NA half-life DT DE (MeV) DP ? 73As syn 80.3d ε - 74As syn 17.78d β+ 0.941 74Ge 75As 100% 75As is stable with 42neutrons {{{5}}} {{{6}}}
All properties are for STP unless otherwise stated.

Introduction

Write this section last.....

Properties

Arsenic forms hygroscopic and acidic solutions which is colourless, crystalline oxides. Phosphorous also has same property as arsenic. Arsenic may work for phosphorous in biochemical reactions, because their acid have gaseous hydride which is unstable. They also have poisonous properties, but soluble arsenic compound was a medicine which is worke as stimulants in the middle of 18th century. When oxides are heated and it becomes arsenic trioxide, the vapor comes out but its smell is really bad.[1] Arsenide mineral, arsenopyrite, is detected in this vapor. Arsenic is contained in many solid forms. For examples, some forms are soft, waxy, and usstable.[2]

Occurrences

Heavy, large rock of pure arsenic

Almost 50% of white arsenic is produced in China. Peru and Chile are the secondary producer of white arsenic. White arsenic is important compound of arsenic. Paris Green, Calcium, and lead hydrogen arsenate are the latter three which are using for agricultural insecticides, and poisons and they are sulfide.[3]

Uses

Other

Description

References

• reference title description (i.e. source, website, author, etc.)
• reference title description (i.e. source, website, author, etc.)
• reference title description (i.e. source, website, author, etc.)

v • d • e Chemistry Feature articles Acid · Atom · Biotechnology · Bonds · Chemical series · Substances · Compounds · Electron configuration · Energy · Elements · Ion · Microscopy · Nuclear chemistry · Organic compound · Periodic table · Radioactive decay Categories · Portal