Chemistry vs Valdoz - Secret Agent Series 3
From last problem,Running on Trains - Secret Agent Series #2 you are stuck on top of a 72 km/h fast train. Unfortunately, you can't move. ( If you want to know why you can't move, try to solve the second problem in this series.) Anyway, you jump off the train straight onto the ground. Unfortunately, your arch-enemy Valdoz appears, and starts to threaten you. "I don't care, Valdoz. You're going down!" You look in your pocket, and find a matchstick. You light it and throw it at Valdoz. Suddenly, he explodes. So, from what element could Valdoz be made out of?