Arsenic Number of Electrons, Protons, Neutrons, Symbol and Name
Name: Arsenic Symbol: As Number of
Protons: 33 Number of Electrons: 33 Number of Neutrons: 42 Melting Point: 817.0 °C (1090.15 °K, 150
2.6 °F) Boiling Point: 613.0 °C (886.15 °K, 1135.4 °F)
History
Arsenic: From the Latin word arsen
icum, the Greek word arsenikon and the Arabic word Az-zernikh. Arsenic is pronounced AR-s'n-ik. Alth
ough the early Chinese, Greek mined arsenic compounds and Egyptian civilizations, it is believed tha
t Albertus Magnus, a German alchemist, first identified arsenic itself.
Properties
Melting Point:
1090 K (1502.6°F) Boiling Point: 887 K (1137.2°F) Density: 5.776 grams per cubic centimeter Phase a
t Room Temperature: Solid Estimated Crustal Abundance: 1.8 milligrams per kilogram Estimated Oceanic
Abundance: 3.7-3 milligrams per liter Number of Stable Isotopes: 1
Electron Shell Configuration: 1
s2 2s2 2p6 3s2 3p6 3d10 4s2 4p3
Elemental arsenic occurs in two solid modifications: yellow, and g
rey or metallic, with specific gravities of 1.97, and 5.73, respectively. The element is a steel Gre
y, very brittle, crystalline, semimetallic (metalloid) solid. It tarnishes in air, and when heated r
apidly oxidizes to arsenous oxide which has a garlic odour.
Arsenic and its compounds are poisonous
. Upon heating arsenic and some minerals containing arsenic, it sublimes (transfers from the solid t
o the gaseous state, without passing through the liquid state).
Chemical properties
Synonyms for a
rsenic are arsenic-75, metallic arsenic, arsenic black, arsenicals, and colloidal arsenic. The inorg
anic arsenic compounds are solids at normal temperatures and are not likely to volatilize. In water,
they range from quite soluble (sodium arsenite and arsenic acid) too practically insoluble (arsenic
trisulfide).
Some organic arsenic compounds are gases or low-boiling liquids at normal temperature
s. Poisonous gas is produced by arsenic in a fire. Arsenic near acid or acid mist can release a very
deadly gas, arsine. Twenty-one arsenic compounds are considered to be of concern because of their t
oxicity and presence in the environment. I will add more on the poison of Arsenic near the end of my
Project Uses
Arsenic and its compounds are poisonous (More on this later). They have been used to
make rat poison and some insecticides. Small amounts of arsenic are added to germanium to make tran
sistors. Gallium arsenide (GaAs I believe an isotope) can produce laser light directly from electric
ity this is why arsenic is commonly used in lasers and sensors. Other things I found arsenic was use
d for but wasn't quite sure on but I'll list it anyway. Bronzing, pyrotechnics, hardening and improv
ing the sphericity of shot, doping agent in solid-state devices such as transistors (Have no clue wh
at this means but anyway), arsenide is used as a laser material to convert electricity directly into
coherent light. While more on to days time arsenic is still being used for pesticide and herbicide
production.
Isotopes
Isotopes Half Life As-71 2.7 days As-72 26.0 hours As-73 80.3 day
s As-74 17.8 days As-75 Stable As-76 26.3 hours As-77 39.0 hours As-79 9.0 minut
es
Here are some of the isotopes I found on Arsenic but I couldn't find anything more on it.
Poiso
n of Arsenic
Large doses of inorganic arsenic can cause death. Arsenic is a known poison and a know
n carcinogen that has been shown to cause skin and lung cancer. It also can damage a developing fetu
s.
Getting Arsenic exposure inside can cause digestive tract pain, nausea, vomiting, diarrhea, decr
eased production of red and white blood cells, abnormal heart function, blood vessel damage, liver a
nd/or kidney injury, and impaired nerve function, causing a "pins and needles" effect in the feet an
d hands. Arsenic can also cause a pattern of skin abnormalities, including the appearance of dark an
d light spots on the skin (I'm just wondering is this leprosy) , and small "corns" on the palms, sol
es, and trunk, which may ultimately progress to skin cancer. In addition, arsenic ingestion is repor
ted to increase the risk of cancer inside the body, especially in the liver, bladder, kidney, and lu
ng.
Skin contact with arsenic can cause burning, itching and a rash. Breathing arsenic can irritate
the nose and throat; eye contact can cause red, watery eyes and irritation. Long-term exposure can
cause an ulcer or hole in the "bone" dividing the inner nose, hoarseness, and sore eyes.
Population
s relying on groundwater or surface water near geologic or man-made sources of arsenic may receive h
igher than typical exposures. Individuals with protein-poor diets or choline (of the Vitamin B compl
ex) deficiency may be more sensitive to arsenic than the general population. In result you can see A
rsenic is highly poisonous and I hope never to get it. A picture of skin cancer can be found on the
front (Arsenic caused this skin cancer).
Bohr Diagram
Number of Energy Levels: 4
First Energy Le
vel: 2 Second Energy Level: 8 Third Energy Level: 18 Fourth Energy Level: 5
I'm not too sure if thi
s would be the diagram or the one listed above both are different but I listed the energy levels acc
ording to this one because you said over 20 on the periodic table was different so I thought this mi
ght be it.
Table Of Contents
Bohr Diagram (number 1) pg. 1
Number of electrons,protons...
pg. 1
History
pg. 1
Properties
pg. 2
Chemical properties
pg. 2 Uses
pg. 3
Isotopes
pg. 3
Poison of Arsenic
pg. 3
Bohr Diagram (Number 2)
pg. 4
B
ibliography
pg. 5
Bibliography
Encyclopedia Americana, Copyright 198
9, book 2
toxtown.nlm.nih.gov/text_version/chemical/arsenic.html
www.chemicalelements.com/elements
/as.html
www.webelements.com/webelements/ elements/text/As/chem.html
www.nsc.org/library/chemical/
arsenic.htm
arsenic number electrons protons neutrons symbol name name arsenic symbol number pro
tons number electrons neutrons melting point boiling point history arsenic from latin word arsenicum
greek word arsenikon arabic word zernikh pronounced although early chinese greek mined compounds eg
yptian civilizations believed that albertus magnus german alchemist first identified itself properti
es melting point boiling density grams cubic centimeter phase room temperature solid estimated crust
al abundance milligrams kilogram estimated oceanic abundance milligrams liter stable isotopes electr
on shell configuration elemental occurs solid modifications yellow grey metallic with specific gravi
ties respectively element steel grey very brittle crystalline semimetallic metalloid solid tarnishes
when heated rapidly oxidizes arsenous oxide which garlic odour compounds poisonous upon heating som
e minerals containing sublimes transfers from gaseous state without passing through liquid state che
mical properties synonyms metallic black arsenicals colloidal inorganic compounds solids normal temp
eratures likely volatilize water they range from quite soluble sodium arsenite acid practically inso
luble trisulfide some organic gases boiling liquids normal temperatures poisonous produced fire near
acid acid mist release very deadly arsine twenty considered concern because their toxicity presence
environment will more poison near project uses poisonous more this later they have been used make p
oison some insecticides small amounts added germanium make transistors gallium arsenide gaas believe
isotope produce laser light directly electricity this commonly used lasers sensors other things fou
nd used wasn quite sure list anyway bronzing pyrotechnics hardening improving sphericity shot doping
agent state devices such transistors have clue what this means anyway arsenide laser material conve
rt electricity directly into coherent light while more days time still being pesticide herbicide pro
duction isotopes isotopes half life days hours days stable hours hours minutes here found couldn fin
d anything poison large doses inorganic cause death known known carcinogen that been shown cause ski
n lung cancer also damage developing fetus getting exposure inside cause digestive tract pain nausea
vomiting diarrhea decreased production white blood cells abnormal heart function blood vessel damag
e liver kidney injury impaired nerve function causing pins needles effect feet hands also pattern sk
in abnormalities including appearance dark light spots skin just wondering leprosy small corns palms
soles trunk which ultimately progress cancer addition ingestion reported increase risk cancer insid
e body especially liver bladder kidney lung contact with burning itching rash breathing irritate nos
e throat contact watery eyes irritation long term exposure ulcer hole bone dividing inner nose hoars
eness sore eyes populations relying groundwater surface water near geologic made sources receive hig
her than typical exposures individuals with protein poor diets choline vitamin complex deficiency se
nsitive than general population result highly hope never picture found front caused bohr diagram ene
rgy levels first energy level second energy level third level fourth sure would diagram listed above
both different listed levels according because said over periodic table different thought might tab
le contents bohr diagram electrons protons history properties chemical uses bohr bibliography biblio
graphy encyclopedia americana copyright book toxtown text version chemical html chemicalelements ele
ments html webelements webelements elements text chem html libraryEssay, essays, termpaper, term pap
er, termpapers, term papers, book reports, study, college, thesis, dessertation, test answers, free
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