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 14, a member of the tetrels, takes its name from Latin 'flint'?
Cerium (Ce)
Silicon (Si)
Rubidium (Rb)
Titanium (Ti)