Question

in the modern periodic table name the following elements:
1) most reactive element
2) least reactive element
3) most elctropositiveand electronegative element
4) least​elctropositiveand electronegative element.
5)elements with highest and lowest metallic character.
6)element with highest and lowest ionisation energy.

Answer 1

1) Fluorine
2) Helium
3) Francium is most electropositive (but not studied due to radioactivity) Next is Cesium.
Fluorine is most electronegative
4) Fluorine and Francium respectively
5) Francium and Fluorine
6) Helium and Francium