Topic Details (Notes format)

Which isotopes are commonly used to date organic remains in archaeology, with a half-life of ~5,730 years?

Which element has the chemical symbol "Cm"?

What natural phenomenon is measured by the Richter scale?

Which element has the chemical symbol "Ca"?

Which region in northern Chile and southern Peru is famed for dryness and astronomical observatories?

Which element has the chemical symbol "Yb"?

Which element has the chemical symbol "Eu"?

Who discovered astatine?

Which is the highest waterfall in the world?

Which Greek epic poem tells the story of the Trojan War?