Question

What family is the most reactive metal in the periodic table?

Answer 1

Hint: We have to know that one can utilize the reactivity of metals series to foresee which metal will be the most reactive and to look at the reactivity of various metals. The arrangement is a chart that rundowns components as per how promptly the metals displaces hydrogen in chemical reaction.

Complete answer:
We have to know that Reactivity is a proportion of how possible a chemical species is to partake in chemical reactions to produce chemical bonds. A component that is exceptionally electronegative, like fluorine, has an incredibly high attraction for holding electrons.
Components at the far edge of the range, like exceptionally reaction metals cesium and francium, promptly form chemical bonds with electronegative particles. As you drop down a column or group of the periodic table, there would be an increase in size of the atomic radius.
For the metals, this implies the valence electrons turn out to be farther away from the nucleus which is positively-charged. These electrons are simpler to eliminate, so the atoms promptly form chemical bonds. As such, as you increment the size of atoms of metals in a group, their reactivity likewise rises.
We can say that the family which has the most reactive metals in the periodic table is alkali metals. The reason why they are highly reactive is because of the electronic configuration.

Note:
 We have to know that members present in alkali metal family are potassium $\left(K\right)$, sodium $\left(Na\right)$, caesium $\left(Cs\right)$, Lithium $\left(Li\right)$, and francium $\left(Fr\right)$. They are known as group $1$ elements and are found in the s-block of the periodic table. They have one electron found in their outermost shell.