CLASS - XI CHEMISTRY (Classification of Elements and Periodicity in Properties) work sheet-5

Topic: - Miscellaneous Questions

1. What is the general outer electronic configuration of f – block elements?

2. Why do Na and K have similar properties?

3. Arrange the following elements in the increasing order of metallic character :
Si, Be, Mg, Na, P.

4. The atomic number of an element is 16. Determine its position in accordance
to its electronic configuration.

5. Why are elements at the extreme left and extreme right the most reactive?

6. Why does the ionization enthalpy gradually decreases in a group?

7. Why does electronegativity value increases across a period and decreases
down period?

8. How does electronegativity and non – metallic character related to each
other?