1. Who invented the Periodic Table?

2. Prometheum belongs to which group of elements?

3. What is the chemical symbol for Mercury?

4. Who is credited with the Big Bang Theory?

5. Who first prepared sodium?

6. Which of the following is the odd one out and why. Sodium, Potassium, Barium and Cesium?

7. What is the Crystal structure of Sodium Chloride?

8. What is the name for a substance that is used to speed up a chemical reaction?

9. What name is given to the change directly from the solid to the gaseous state without becoming liquid?

10. What is the Chemical formula of Methane?

 

 

 

 

 

 

 

 

 

ANSWERS

1. Mendeleev

2. Lanthanides

3. Hg

4. Georges LeMaitre

5. Sir Humphrey Davey

6. Barium, because it's an Alkaline Earth Metal in group 2 of the periodic table (the others are all Alkali metals in group 1 of the periodic table)

7. It consists of 2 interlocked face centered cubes

8. Catalyst

9. Sublimation

10. CH4