The element responsible for nerve damage that caused many hatters to go mad, giving rise to the term "mad hatter."
What is mercury?
100
Proved the gas law that states pressure and volume are inversely related.
Who is Robert Boyle?
200
This first row transition metal burns green and has an unusually stable +1 oxidation state.
What is copper?
200
The electron geometry around the sulfur atom in sulfur tetrafluoride.
What is seesaw?
200
I discovered oxygen.
Who is Joseph Priestly?
200
Referred to in the Bible as brim stone, this element was one of the major components of black gunpowder.
What is sulfur?
200
I proposed the first atomic theory and the law of partial pressures is named after me.
Who is John Dalton?
300
Aside from mercury, the only other element that is a liquid in its standard state.
What is bromine?
300
The number of radial nodes in a 5p orbital.
What is 3
300
This is the phenomenon for which Einstein's explanation won him his only Nobel prize.
What is the photoelectric effect?
300
This heavy p-block element is extraordinarily toxic due to its ability to replace potassium in biological systems.
What is thallium?
300
I was the first living scientist to have an element named after me.
Who is Glenn Seaborg?
400
This is the lightest man-made element, and is used in many current chemotherapy treatments.
What is technetium?
400
The units when an energy in J is multiplied by a voltage in V.
What is a coulomb?
400
The general name given to the group 15 elements.
What are the pnictogens?
400
As recently as the late 1800s this element was mixed with chalk and vinegar to help lighten a woman's complexion, despite also being considered the poison of kings.
What is arsenic?
400
I discovered radium and polonium, though my work with these and other radioactive materials eventually cost me my life.
Who is Marie Curie?
500
I am the densest and least compressible metal on the periodic table, and one of my oxides is a commonly used organic reagent for the cleavage of alkenes.
What is osmium?
500
The pH halfway to the equivalence point of a titration of a weak acid with a strong base.
What is the pKa of the weak acid?
500
This property is one in which crystalline solids produce electric charge or current when mechanically deformed.
What is piezoelectricity?
500
One of the rarest elements on Earth, this element essentially vaporizes itself due to its extreme radioactivity. This is probably good since like the other members of its group it reacts extremely violently with water.
What is francium?
500
Despite not actually being a chemist, the last currently named transition metal is named after me.