Scientists of Week
march 1845-feb 1923
german physicist
produced and detected x-rays
won nobel prize in 1901
Wilhelm Rontgen
Have properties of both metals and nonmetals
metalloids
chel (chelation)
What is claw?
august 1885-july 1966
hungarian radiochemist
discovered halfnium
invented the use of radioactive tracers
won nobel prize in 1945
George de Hevesy
what is everything after uranium known as
What are trans-uraniums?
April - feb
british surgeon
successfully introduced sterlization to medical field
Joseph Lister
What is an electron affinity?
away
1861-1935
swiss physicist
recieved nobel prize in physics in 1920 in recognition of the service he had rendered to precision measurements in physics by his discovery of anomolies in nickel steel alloys
was head of international bureau of weights and measures
Charles Guillaume
Properties of noble gases
may-sep
british medical doctor
discovered that mosquitos carried malarial parasites and were responsible for the transmission of disease
won 1902 nobel prize for discovery of transmission of malaria
Sir Ronald Ross
tax (taxis)
1818-1865
hungarian physician
an early pioneer of antiseptic procedures
"the savior of mothers" for his discovery that washing hands between patients decrease "childbed fever" deaths
Ignaz Semmelweis
amount of energy released when an atom gains an electron
What is electron affinity?
sep 1883-august 1957
polish biologist, physician, and inventor
created 1st effective typhus vaccine
nominated 7 times for but never won nobel prize honored in isreal for efforts to save and shelter jews
Rudolf Weigl
What is positive?
sicc (dessicate)
dry
june 1911-sep 1988
american physicist
best known for discovering the iridium layer around the world at the K-T boundary and the theory that a massive meteorite caused a mass extinction of the dinosaurs
invented microwave phased array antenna
won nobel prize in 1968 for his contributions to participate in physics
Luis Alvarez
1/2 of the distance between the nuclei of two alike atoms
What is atomic radius?
dec 1706-sep 1749
french physicist
correctly predicted infarred readiation
translated the principia into french
invented futures investing
died in childbirth
emilie du chatelet
only liquids at room temperature on the periodic table
What are mercury and bromine?
artha (arthritis)
joint
nov 9th, 1914-jan 19th, 2000
naturalized american (austrian) actress and physicist
inventor od radio guidence technology by frequency hopping
her technology is used in todays wifi, cdma, bluetooth
Hedy Lamarr
For columns 1-2 and 13-18, the number in the ones place represents the number of
What are valence electrons?