Saved Bookmarks
| 1. |
Which of the following pairs of elements would have a more negative electron gain enthalpy?? and give reasons ....1. F or Cl 2.O or F |
|
Answer» In the first group, Cl will be more electronegative because as we MOVE from Cl to F the atomic size increases. This leads to repulsion among the electrons so the ELECTRONEGATIVITY of F decreases. But in the second pair F is more electron than O this can be explained in TERMS of the SMALLER size of F ATOMS and increased nuclear charge which is more than that of O even after a slight decrease due to the forces of repulsion as explained above. |
|