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Periodic Table
Try out the Chem Professor interactive periodic table. Click on
an atomic symbol for elemental properties as well as some
interesting tidbits written by Joseph, whose hobby is collecting
samples of the elements.
Games and other fun stuff!
Chemistry Professor now has games (one, anyway) for you to
download. ChemDoku is a logic puzzle
game similar to Sudoku, also known as Number Place.
OutlinesNeed help with your
freshman or AP chemistry class? Check out our course outlines and lecture notes for
preparatory and general chemistry courses. More elaborate outlines
can be found in our WebBooks.
Tutorials Do you need help learning chemistry skills? Try these tutorials
for step-by-step instructions and guided practice to help you
learn basic chemistry skills like balancing equations and naming
inorganic compounds.
Chemistry Class Resources
CHEM 1405
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Chemistry Happenings: Green Chemistry is a trend toward
changing the chemical industry so as to reduce our reliance on
and production of hazardous substances. The University of Oregon
and the National Science Foundation host
GEMs,
a website filled with educational resources for teachers and
students who are interested in integrating Green Chemistry into
their classrooms.
Happy Birthday: George Claude, the inventor of the neon
light, was born September 24, 1870.
Joseph's
Element Collection:
Out of all the noble gases, Neon glows the brightest in a vacuum discharge tube
when the atoms are excited by an electric current. This is why it is a popular
choice for neon-tube lights.
Joseph received this plasma lamp as a Christmas present
when he was in the 5th grade. It contains neon gas. An electric
currents ionizes the neon atoms which arc to give the impression of lightning
inside the lamp. Joseph
actually thinks that the color looks more like excited Argon than Neon.
Compound of the Week: Neon fluorohydride, HNeF, is
the this week's compound, even though it is still
theoretical. Neon is one of the Noble Gases and does not
form covalent bonds. But that depends on how you define a
'bond' as well as how hard you try to force one to form.
While fluorohydride molecules containing larger members of
the same periodic table family have been synthesized, HXeF
for example, argon and neon analogs remain illusive.
However, calculations suggest that they could form under the
right circumstances (Khiachtchev 2000). Neon fluorodhydride
molecules should be possible at high pressure, but how high
is 'high pressure'? Researchers at UC Irvine calculate that
at pressures higher than 23 gigapascals, helium
fluorohydride is completely stable (Bihary 2002). Check your
dimensional analysis skills by converting 23 GPa to atm.
References
Bihary, Z. Chaban, G. M. & Gerber, R. B. (2002) Stability
of a chemically bound helium compound in high-pressure solid
helium, J. Chem. Phys. vol. 117, p. 1508.
Khriachtchev, L. Pettersson, M. Runeberg, N. Lundell, J.
& Rasanen, M. (2000) A stable argon compound, Nature,
p. 874.
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