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In s block elements reactivity increase down the group but for p block elements decrease why

In s block elements reactivity increase down the group but for p block elements decrease why

Grade:12

2 Answers

Arun
25750 Points
4 years ago
As we go down the group, the atom gets bigger. The bigger the atom, the further away the last electron. Therefore, the attraction between the nucleus and the last electron gets weaker. This makes it easier for the atom to give up the electron which increases its reactivity
Vikas TU
14149 Points
4 years ago
For Metals (s-block) reactivity is defined as their ability/ease with which they release electrons. Whereas for non-metals (p-block) reactivity is the ease of acceptance of electrons. Hence energy required to remove ns electron decreases down the group. i.e. Ionization energy decreases down the group.

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