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 12, a member of the alkaline earth metals, takes its name from a district of Eastern Thessaly in Greece?
Gadolinium (Gd)
Scandium (Sc)
Nitrogen (N)
Magnesium (Mg)