Question

Why is the reactivity of metal increase but that of non-metal decreases as we go down in a group of periodic table? (pls its important i need this question's ans for my exam so answer it fast thank you)

Answer 1

Answer:

Nonmetal reactivity decreases down a group because the nucleus' ability to gain more valence electrons weakens due to more nuclear shielding. For Metals: the most reactive metals are those that can lose their valence electrons the most easily. ... Francium is the most reactive metal

Explanation:

Answer 2

Answer:

While moving from top to bottom in a group of the periodic table, the reactivity of non- metals decreases. ... Thus, the tendency of gaining electron/s in the valence shell decreases as well as the chemical reactivity also decreases on moving from top to bottom in a group of non- metals.