Advertisements
Advertisements
प्रश्न
Why is the electron affinity of fluorine less than chlorine?
Explain why:
Fluorine has lower electron affinity than chlorine.
Advertisements
उत्तर १
Fluorine has lower electron affinity than chlorine because of the small size of fluorine, which results in stronger repulsion between the electron and the electrons already present in the atom of fluorine. Hence, the energy released in accepting an electron is lesser in fluorine than that of chlorine.
उत्तर २
- Fluorine has a very small atomic size, causing high electron density around its nucleus.
- This high electron density leads to strong repulsion for the incoming electron.
- As a result, fluorine does not accept the electron as easily as chlorine.
- Therefore, less energy is released when fluorine gains an electron, meaning lower electron affinity.
- Chlorine, with a larger size, can accommodate the electron more easily and thus has a higher electron affinity.
Notes
Students can refer to the provided solutions based on their preferred marks.
APPEARS IN
संबंधित प्रश्न
Draw an electron dot diagram to show the formation of each of the following compounds:
Magnesium Chloride
[H = 1, C = 6, Mg = 12, Cl = 17]
Choose the correct answer from the options given below:
If an element A belongs to Period 3 and Group II, then it will have
A. 3 shells and 2 valence electrons
B. 2 shells and 3 valence electrons
C. 3 shells and 3 valence electrons
D. 2 shells and 2 valence electrons
Arrange the elements of second period in increasing order of their electron affinity. Name the elements which do not follow the trend in this period.
State the factors on which electron affinity depends ?
Explain the following:
Halogens have a high electron affinity.
Explain the following:
The reducing power of element increases down in the group while decreases in a period.
Arrange the elements of group 17 and group 1 according to the given conditions.
Increasing electron affinity
In a period, increase in electron affinity increases ______.
The electron affinity of an element X is greater than that of element Y.
State whether X is likely to be placed to the left or to the right of Y in the periodic table.
Arrange the following as per instruction given in the bracket.
Cl, F, Br, I (increasing electron affinity)
