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 9, a member of the halogens, takes its name from Latin 'to flow'?
Fluorine (F)
Carbon (C)
Zirconium (Zr)
Neodymium (Nd)