FIRST Jeopardy 2.0! (12/8)

Elements for 300, this element is commonly used in atomic clocks to keep time. Remember to PM me your answer in the form of a question within 50 minutes.

12/8

Elements for 300, this element is commonly used in atomic clocks to keep time.

What is Cesium?

Joshua May (300), Pat Fairbank (141), chocolateluvrlr (138), tkwetzel (126)