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Technetium

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Vivek Bhupatiraju

on 4 February 2014

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Transcript of Technetium

Technetium
Technetium:
Technetium: A History
Technetium: The Bohr Model
Where is Technetium Found In Nature?
Technetium: A Video
Tc
Vivek Bhupatiraju, Yellow Science, 1.27.14
http://chemicalelements.com/elements/tc.html
Protons: 43
Electrons: 43
Neutrons: 55
1st Level - 2 Electrons
2nd Level - 8 Electrons
3rd Level - 8 Electrons
4th Level - 8 Electrons
5th Level - 8 Electrons
6th Level - 1 Electron
The element
Technetium
was created in Italy, by Carlo Perrier and Emilio Segre in 1937.

It is named after the Greek word for artificial,
techetos
.

Technetium
was the first artificial element ever created.
Technetium
's most stable isotope, technetium-98, has a half-life of about 4,200,000 years.

It decays into ruthenium-98.

Technetium was created by bombarding molybdenum atoms with deuterons .
http://protomag.com/statics/W_08_defined_a_v_sm.jpg?1323704618
http://education.jlab.org/itselemental/ele043.html
Identification
Here We Go!
Technetium is special; for it was the first element to ever be made by man, known as an artificial element. It is also radioactive, like Uranium and Plutonium.
Is Technetium A Conductor?
Technetium is a conductor of electricity and also heat to a small degree.
Is Technetium
Reactive?
Yes, it is reactive and it is also radioactive.
Technetium: Other Properties
Technetium is a metal, it's found in group 7 and in period 5, it's a metal at room temperature. It's also radioactive.
Technetium:
Properties
Here We Go!
Technetium: Physical Properties
Density: 11.5 g/cc
Boiling Point: 4265° C
Melting Point: 2157° C
Isotopes: Yes, Technetium has isotopes.
Crystal Structure: HCP (hexagonal close-packed)
Technetium:
Compounds
Here We Go!
Technetium Fluoride
(TcF6)
Technetium hexafluoride occurs as an impurity in uranium hexafluoride, as technetium is a fission product of uranium.
Technetium Sulfide
(TcS2)
It exists, but has very little uses.
Technetium:
Uses + Hazards
Here We Go!
Technetium: Uses
Technetium-99 is used in many medical radioactive isotope tests. Mild carbon steels may be effectively protected by minute quantities of technetium, but this corrosion protection is limited to closed systems because of technetium's radioactivity.
Hazards of Technetium
All technetium compounds should be regarded as highly toxic, largely because of its radiological toxicity.
A living cell is a marvelously delicate balance of interacting materials. Hence any chemical change in a cell, such as radiation however slight, may have serious effects, It may substantially change the normal life processes, or even kill the cell.
Technetium and Radiation
Full transcript