20 elements

Quiz yourself by guessing what should be in each of the black rectangles below before clicking on it to display the answer.
        Help  

Flap 1
Flap 2
Hydrogen   H  
Helium   He  
Lithium   Li  
Beryllium   Be  
Boron   B  
Carbon   C  
Nitrogen   N  
Oxygen   O  
Fluorine   F  
Neon   Ne  
Sodium   Na  
Magnesium   Mg  
Aluminum   Al  
Silicon   Si  
Phosphorus   P  
Sulphur   S  
Chlorine   Cl  
Argon   Ar  
Potassium   K  
Calcium   Ca  


   

 
 

 
 

 

 

 
www.eapps.com




Copyright ©2001-2008 John Weidner All rights reserved.
About -  Terms of Service -  Privacy Statement