Study the information in the table below and answer the questions that follow: The letters do not represent the actual symbol of the element).
Element | Electronic configuration | Ionisation energy KJ mol−1 |
P Q R | 2,1 2,8,1 2,8,8,1 | 519 494 418 |
- What is the general name given to the group in which element P, Q and R belong?
- What is meant by ionization energy
- Explain why Element P has the highest ionization energy
- When a piece of element Q is placed on water it melts and a hissing sound is produced as it moves on the surface of the water .Explain this observation
- Write an equation for the reaction between elements Q and water