O | ||
---|---|---|
1 pt | ||
What is the production of carbon monoxide for iron/steel prodution? | ||
Major industrial use of oxygen | ||
2 pt | ||
What is air (distillation of liquid air)? | ||
Major source of elemental oxygen | ||
3 pt | ||
What is 21%? | ||
Percentage of elemental oxygen in the atmosphere (+/- 5%) | ||
4 pt | ||
Who is Joseph Priestly? (However, Carl Scheele is commonly identified as the first person to prepare/isolate oxygen) | ||
Chemist usually given the credit for discovering "dephlogisticated air" | ||
5 pt | ||
What is hydrogen peroxide? (Even in plastic it can't be 100% pure and must have a stabilizer present) | ||
Substance containing oxygen that must be stored in plastic containers because it can react explosively with glass | ||
S | ||
1 pt | ||
What is S_8_? | ||
Most stable allotrope of sulfur | ||
2 pt | ||
What is hydrogen sulfide (H_2_S)? | ||
Sulfur compound normally associated with the smell of "rotten eggs" | ||
3 pt | ||
What is the production of sulfuric acid, the vulcanization of natural rubber, or a component in gunpowder? | ||
One of the major industrial uses of sulfur | ||
4 pt | ||
What is pyrite? (fool's gold) | ||
Common name of iron sulfide | ||
5 pt | ||
What are amino acids cysteine and methionine? | ||
Biological usage of sulfur that's part of the "sulfur cycle" | ||
Se | ||
1 pt | ||
What is the active ingredient in dandruff shampoos? (it kills the fungus responsible for skin flaking) | ||
Major use of selenium sulfide in commercial products | ||
2 pt | ||
What is a photocell or photosensor? | ||
Major current industrial use of selenium | ||
3 pt | ||
What is the photoconductor in copy machines? (it was a coating on the drum of the copier) | ||
Major industrial use of selenium in the 1970s | ||
4 pt | ||
What is "moon"? (Greek) | ||
Meaning of the word selenium | ||
5 pt | ||
What is a garlic odor on the breath? (toxic level = 800 mcg/day) | ||
Major symptom of selenosis | ||
Te | ||
1 pt | ||
What is 1-5 ppb? (very rare - lanthanides are around 500 ppb) | ||
Abundance of tellurium in the Earth's crust (+/- 25%) | ||
2 pt | ||
What is an additive to steel (stainless steel) to improve it's strength and durability? | ||
Major current use of tellurium in industry | ||
3 pt | ||
What is a media layer of rewritable optical discs (CD, DVD, Blu-Ray)? | ||
Use of tellurium oxide that takes advantage of it's sensitivity to light exposure | ||
4 pt | ||
What is "Earth"? (Greek) | ||
Meaning of the word tellurium | ||
5 pt | ||
What is it was used in the outer shell of the first atomic bombs? | ||
Usage of tellurium in 1945 that had important historical context | ||
Po | ||
1 pt | ||
Who are Marie and Pierre Curie (1898)? | ||
Discoverer of polonium | ||
2 pt | ||
What is the homeland of the discoverers? | ||
Motivation for giving polonium it's name | ||
3 pt | ||
What is 29? (most of any element, and all are radioactive) | ||
Number of polonium isotopes (+/- 10%) | ||
4 pt | ||
What are thermoelectric cells in satellites and Russian moon rovers? | ||
Equipment heated by polonium isotope alpha particle emission | ||
5 pt | ||
What is assassination (radioactive soup)? (Alexander Litvineko) | ||
Recent use of polonium as a murder weapon | ||
Daily Double | ||
Daily Topic | ||
What is tellurium? (it's the "slime" waste that comes from copper mining) | ||
Element in this group that comes from "slime" | ||