1. What is the chemical symbol for the element Silver?
2. Which of the following elements is represented by a symbol derived from its Latin name 'Cuprum'?
3. Which of these elements is a Metalloid?
4. How many elements are currently known and recorded in the Periodic Table?
5. An element has an atomic number of 12. What is the name of this element?
6. Where are all the known elements organized and listed?
7. How should the chemical symbol for an element be written if it has two letters?
8. What is the most common element in the Earth's atmosphere?
9. Which element is essential for breathing and supports combustion (burning)?
10. Anions are ...........