Study the information below and answer the questions that follow. The letters do not represent the actual symbols of the elements.
Element | Electronic Configuration | Ionization energy KJ/mol |
1st I.E | 2nd I.E. |
X | 2.2 | 900 | 1800 |
Y | 2.8.2 | 736 | 1450 |
Z | 2.8.8.2 | 590 | 1150 |
- What chemical family does the elements X, Y and Z belongs?
- What is ionization energy?
- The 2nd ionization energy is higher than the 1st ionization energy of each element. Explain.
- When a piece of element Z is placed in cold water, it sinks to the bottom and effervescence of a colourless gas that burns explosively is produced. Use a simple diagram to illustrate how this gas can be collected during this experiment.