TM Row 2

History
1 pt
What is yttrium?
Element in this row discovered near the Sweedish village of Ytterby
2 pt
What is ruthenium?
Element in this row discovered near the Russian region of Ruthenia
3 pt
What is ruthenium or rhodium?
One of the two elements in this row largely obtained from used nuclear fuels instead of mining
4 pt
What is niobium?
Element in this row that was originally named columbium since it was found in America (which was called Columbia in the 1700s)
5 pt
What is palladium?
Element in this row named in 1804 after a large asteroid that was discovered two years earlier
Oxidation States
1 pt
What is +3?
Most common/stable oxidation state in the early transition metals in this row
2 pt
What is +2?
Oxidation state only obtained in this row when the metal is bound to stabilizing (pi accepting) ligands
3 pt
What is ruthenium (group 8)?
Last element in this row where the "group" oxidation state is observed
4 pt
What is disproportionation?
Process by which two unstable oxidation states undergo electron transfer to obtain a more stable state (M(IV) + M(II) --> 2 M(III)
5 pt
What is rhodium(I) or palladium(II)?
One of two metals and oxidation state in this row that produces stable square planar complexes
Ores
1 pt
What is zirconium?
Zircon
2 pt
What is molybdenum?
Wulfenite
3 pt
What is palladium?
Only found on Earth as an alloy with gold
4 pt
What is niobium?
Pyrochlore
5 pt
What is ruthenium?
Pentlandite
Uses
1 pt
What is technetium?
Element in this row used heavily in nuclear medicine and as a radioactive tracer
2 pt
What is yttrium?
Element in this row used as a phosphor in fluorescent tubes and television screens
3 pt
What is rhodium?
Element in this row found in most automobile catalytic converters
4 pt
What is molybdenum?
Element in this row first used in industry as armor plating for tanks in WWI
5 pt
What is zirconium?
Element in this row used in nuclear reactor construction due to its low neutron capturing ability
Fun Facts
1 pt
What is silver bromide?
Halide compound based on a metal in this row used as the active ingredient in black and white film
2 pt
What is palldium?
Hydride compound based on a metal in this row that has been found to absorb large amounts of molecular hydrogen...possibly for it's storage
3 pt
What is ruthenium?
Element in this row commonly used as a light absorber in rutile-based solar cells
4 pt
What is niobium?
Element in this row found in the superconducting magnets in our NMR
5 pt
What is cadmium?
Element in this row that is highly carcinogenic, which has led to it's recently curtailed use in essential consumer goods
Daily Double
Daily Topic
What is silver iodide?
Compound based on a metal in this row used in cloud seeding