Instructions 20Q Game: These are similar to full games, but for quizzes larger than 20 questions it will randomly select 20 questions from within the set. This is a quick way to get in some studying of a topic.     
What element, atomic number 36, a member of the noble gases, takes its name from Greek 'hidden'?
Darmstadtium (Ds)
Krypton (Kr)
Lithium (Li)
Lutetium (Lu)