Q24 of 59 Page 32

Explain why the electron gain enthalpy of fluorine is less negative than that of chlorine.

Fluorine has a smaller size as compared to chlorine as a result of which the attraction outside the shell to gain electron is less. Moreover there are inter electronic repulsions as well in the 2p orbitals which results in the less negative electron gain enthalpy.


More from this chapter

All 59 →
22

In the following questions two or more options may be correct.

Ionic radii vary in


 23

In the following questions two or more options may be correct.

An element belongs to 3rd period and group-13 of the periodic table. Which of the following properties will be shown by the element?


 25

All transition elements are d-block elements, but all d-block elements are not transition elements. Explain.

 26

Identify the group and valency of the element having atomic number 119. Also predict the outermost electronic configuration and write the general formula of its oxide.