What is the rarest material on earth?

Question

What is the rarest material on earth?

Answer 1

a contended humanbeing,a happy person.there is something a miss in everyones lives

Answer 2

Those would be the elements created in atomic reactions don't exist naturally.

They are known as synthetic elements.

http://en.wikipedia.org/wiki/Synthetic_e...

Answer 3

Human intelligence.

Answer 4

Dinosaur DNA.

Answer 5

BRP's answer is pretty good, but I think antimatter is even rarer than the synthetic elements, and actual atoms of anti-matter, rather than just positrons (anti-electrons) and anti-protons, would be rarer still.

Answer 6

Tellurium is one

Answer 7

A politician with a conscience.

Answer 8

Rare earth elements and rare earth metals are, according to IUPAC, the collection of seventeen chemical elements in the periodic table, namely scandium, yttrium, and the fifteen lanthanoids. Scandium and yttrium are considered rare earths since they tend to occur in the same ore deposits as the lanthanoids and share similar chemical properties with them.

Rare earth elements became known to the world with the discovery of the the black mineral ytterbite (also known as gadolinite) by Lieutenant Karl Arrhenius in the year 1787, in a quarry in the village of Ytterby, Sweden. Many of the rare earths are named in honor of the scientists who discovered or elucidated the elemental properties, geographical discovery, Latin or Greek, or mythology:

Lanthanum from the Greek "lanthanon" meaning I am hidden.

Cerium after Greek deity of fertility, Ceres.

Praseodymium from the Greek "praso" which means leek-green.

Neodymium from a Greek word "neo" which means new-one.

Promethium after Prometheus who brought fire to mortals.

Samarium Vasili Samarsky-Bykhovets discovered the rare-earth ore called samarskite.

Gadolinium after Johan Gadolin (1760-1852) to honor his investigation of rare earths.

Dysprosium from the Greek "dysprositos" meaning hard to get.

Thulium refers to the mythological land of Thule.

Ytterbium named after the village of Ytterby, Sweden, where the first rare earth ore was discovered.