Difference between revisions of "Arsenic"
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{{Element | name=Arsenic | symbol=As | anumber=33 | amass=74.9 amu | noe=33 | class=Non-Metal | cstructure=Rhombohedral | color=Gray | date=Arsenic has been known since ancient times. | discname=Unknown | origname=From the Greek ''arsenikos'' and Latin ''arsenicum''. | uses=Arsenic conducts electricity and is a poison | obtained=Mispikel }} | {{Element | name=Arsenic | symbol=As | anumber=33 | amass=74.9 amu | noe=33 | class=Non-Metal | cstructure=Rhombohedral | color=Gray | date=Arsenic has been known since ancient times. | discname=Unknown | origname=From the Greek ''arsenikos'' and Latin ''arsenicum''. | uses=Arsenic conducts electricity and is a poison | obtained=Mispikel }} | ||
| − | '''Arsenic''' is a | + | '''Arsenic''' is a [[chemical element]] with an [[atomic number]] of 33, and [[atomic mass]] of approx. 74.92, and many of its compounds are highly toxic. It bears a chemical similarity to [[phosphorus]] which is the cause of some of its toxic effects. The most common [[oxidization state|charges]] for arsenic to possess are -3, +3, and -5. |
Arsenic poisoning is the result of the allosteric inhibition of certain enzymes pertinent to metabolism, specifically, it replaces phosphorus is certain reactions, which results in their failing to function appropriately. This leads to cellular death, which in turn leads to tissue death and [[necrosis]], and, if left untreated, death. | Arsenic poisoning is the result of the allosteric inhibition of certain enzymes pertinent to metabolism, specifically, it replaces phosphorus is certain reactions, which results in their failing to function appropriately. This leads to cellular death, which in turn leads to tissue death and [[necrosis]], and, if left untreated, death. | ||
Revision as of 02:49, October 23, 2008
| Arsenic | |
|---|---|
| Properties | |
| Atomic symbol | As |
| Atomic number | 33 |
| Classification | Non-Metal |
| Atomic mass | 74.9 amu |
| Other Information | |
| Date of discovery | Arsenic has been known since ancient times. |
| Name of discoverer | Unknown |
| Name origin | From the Greek arsenikos and Latin arsenicum. |
| Uses | Arsenic conducts electricity and is a poison |
| Obtained from | Mispikel |
Arsenic is a chemical element with an atomic number of 33, and atomic mass of approx. 74.92, and many of its compounds are highly toxic. It bears a chemical similarity to phosphorus which is the cause of some of its toxic effects. The most common charges for arsenic to possess are -3, +3, and -5.
Arsenic poisoning is the result of the allosteric inhibition of certain enzymes pertinent to metabolism, specifically, it replaces phosphorus is certain reactions, which results in their failing to function appropriately. This leads to cellular death, which in turn leads to tissue death and necrosis, and, if left untreated, death.
Oklahoma State University veterinary professor Dr. Billy Clay testified that the amount of arsenic used in animal agriculture is insignificant compared to what’s already in the environment. “Arsenic is very common in nature,” Clay said. “It's everywhere.”[1]