Francium is the most metallic element.

Francium because it will most readily lose its valence electron and this is the definition of metallicity.

The most metallic element is Francium (Fr)

Francium is the most metallic which is a man-made element. Cesium is the most metallic among natural elements.

Francium, however, cesium is the most metallic man made element

Francium is the most metallic element and is extremely radioactive.

Francium and Caesium have the lowest electronegativity (highest electropositivity). However, Francium is extremely radioactive and unstable.

Arguably Francium, but it is man-made so Cesium would be the most metallic naturally occurring element.

Cesium is the most natural metallic element

Francium, because this is the element that is most easily ionised. This is due to its large atomic radius, meaning that the nuclear attraction from the nucleus to the valence electron shell plays a small part, meaning electrons are easily taken away from Francium atoms.

Hi,

francium is the most metallic element and is also and alkali group 1 metal !

The metallic character of an event is dependant on its ability to lose its outer electron and how easily it can lose its valence electrons. The metallic character of a metal also increases as you would move down the group because the atomic radius of the atom increases which means there is more distance between nucleus of the atom of an element which makes it easier to lose valence electrons which is why Cesium is the metal with the most metallic character because it’s at the bottom of the group 1 metals.

The most metallic element in the periodic table is Francium (man-made).

Very interesting question! We have to consider an element's metallic character, a collection of properties we would expect to find in a metallic element. These include ease of reduction - metals tend to form positive ions to have complete shells, and the ability to displace hydrogen from dilute acids, they are above hydrogen in the reactivity series. They also are expected to form basic oxides and chlorides.

The periodic table allows us to predict the metallic character of an element. The metallic character decreases from left to right across the period. An increase in electronegativity increases an element's desire to form negative ions instead of positive ones.

Metallic character increases down a group. This is because atoms gain shells, increasing shielding and making the removal of electrons less energy-demanding.

This would tell me the most electronegative element is francium.