What are the most reactive families on the periodic table and why are they the most reactive?

Answer 1

The alkali metals Lithium, Sodium, Potassium, Rubidium cesium and Francium is the most reactive group of metals. They are this way because they only need to lose one electron to gain a stable octet which is very favorable energetically.

The most reactive group of non-metals is the halogens, Fluorine, Chlorine, Bromine, Iodine and Astatine. These are the exact opposite. They are extremely reactive because they only need to gain one electron to gain a stable octet which is again, highly energetically favorable.

Answer 2

The alkali metals (Group 1) and the halogens (Group 17) are the most reactive families on the Periodic Table. Alkali metals are highly reactive because they have one electron in their outermost shell, which they readily donate to achieve a stable electron configuration. Halogens are highly reactive because they are only one electron away from achieving a full outer shell, so they readily accept electrons to reach a stable octet.

Answer 3

Halogens and alkali metals because alkali metals have positive one charge while halogens have negative one charge. Halogens are very reactive with any elements.