Element Project
Bailey Clary
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Atomic number:33
Atomic mass: 74.9216
Protons: 33
Neutrons: 42
Electrons: 33
Common naturally occurring isotopes: Arsenic75
• Calculations:
Arsenic73(72.92382)(0
Arsenic74(73.92392)(0
Arsenic75(74.92159)(
Arsenic
Bohr model
Orbital
Diagrahm
Full Electron Configuration-1s2 2s2 2p6 3s2 3p6 4s2
3d10 4p3
Abbreviated Electron Configuration-[Ar]4s23d104p3
Common Uses- Insecticides, Poison, Weed killers,
Various alloys, Medical Treatments, Semiconductors
Arsenic was discovered by Albertus Magnus in
Germany in 1250.
Arsenic is thought to have been
found when Albertus Magnus
warmed soap along with orpiment.
This experiment caused the arsenic
to be confined within the new
mixture.
Indium
• Atomic number- 49
• Atomic mass114.818
• Protons-49
• Neutrons-66
• Electrons-49
• Naturally occurring
isotopes- Indium113,
Indium115
Bohr model
Full Electron Confuguration-1s2 2s2p6
3s2p6d10 4s2p6d10 5s2p1.
Abbreviated Electron Configuration[Kr]5s24d105p1.
Common uses-Used to coat high speed
bearings, in solar cells, mirrors, regulators
in nuclear power, photo cells, transistors
and blood & lung research. Also used in
low-melting point alloys for safety devices.
Indium was discovered by
Ferdinand Reich, Hieronymous
Richter in Freiberg Germany,1863
Reich and Richter had been
looking for traces of the element
thallium in samples of zinc ores. A
brilliant indigo line in the sample's
spectrum revealed the existence of
indium.
Orbital diagram
Americium
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Atomic number-95
Atomic mass-243.0
Protons-95
Neutrons -148
Electrons-95
Naturally occurring
isotopes– Americium241
– Americium242
– Americium243
Bohr Model
Full Electron Configuration-1s2 2s2p6 3s2p6d10
4s2p6d10f14 5s2p6d10f7 6s2p6 7s2
Abbriviated Electron Configuration-Rn] 5f7 7s2
Common uses- smoke detectors and radiography.
Americium was discovered in 1944 by the American
scientists Glenn T. Seaborg, Ralph A. James, Leon O.
Morgan and Albert Ghiorso at the university of chicago.