What is the symbol of the element Gold?

(a)  

What is the symbol of the element Hydrogen?

(a)  

What is the symbol of the element Calcium?

(a)  

What is the symbol of the element Krypton?

(a)  

What is the symbol of the element Sodium?

(a)  

What is the symbol of the element Sulfur?

(a)  

What is the symbol of the element Chlorine?

(a)  

What is the symbol of the element Silver?

(a)  

What is the symbol of the element Lead?

(a)  

What is the atomic number of Li?

(a)  

What is the atomic number of Pt?

(a)  

What is the atomic number of Br?

(a)  

What is the atomic number of Cu?

(a)  

What is the atomic number of Ti?

(a)  

What is the atomic number of N?

(a)  

What is the atomic number of Si?

(a)  

What is the atomic number of Sn?

(a)  

What is the atomic number of Oxygen?

(a)  

What is the atomic number of Potassium?

(a)