Na, sodium, should have the lowest first ionization energy of those four elements.
This is francium because having a very lower electronegativity can loss easily an electron.
The most electronegative element is fluorine. Its electron configuration is 1s2 2s2 2p5.
Hydrogen
sodium (Na) Sodium atoms lose one electron when reacting with a nonmetal. Chlorine atoms gain an electron when reacting with a metal, or share an electron when reacting with other nonmetals. Aluminum loses three electrons when reacting with a nonmetal. Assuming that ze is supposed to be Xe, which is the noble gas xenon, which undergoes very few reactions and definitely does not lose an electron when it does.
Alkaline Earths will most easily lose an electron. This is because the have a smaller alkali radii than alkali metals causing them to not be as tightly bound to the nucleus. This makes the more readily lose their electrons.
Fluorine is the element that will accept an electron the most easily. It has a high electronegativity, making it highly capable of attracting and accepting an extra electron to achieve a stable electron configuration.
The Alkali Metals, which are the elements in Group 1 of the periodic table, each have one lone electron in their valence shell. And each of these elements wants to get rid of that single electron. These metals, which include lithium, sodium, potassium, rubidium, caesium and francium, are the most likely to lose electrons.
Na, sodium, should have the lowest first ionization energy of those four elements.
Potassium is the element that is most easily reduced because it has a low ionization energy and readily loses an electron to form a +1 cation.
Arsenic.
Barium (Ba) is the element in group 2 that is most likely to lose an electron, as it is the most reactive element in this group due to having the lowest ionization energy. This makes it easier for barium to lose its outermost electron to form a 2+ cation.
Francium has the lowest electronegativity and fluorine the highest.
This is francium because having a very lower electronegativity can loss easily an electron.
Li, or lithium, is the element most likely to lose electrons in a chemical bond. Lithium has 1 valence electron.
Elements that have a tendency to gain or lose electrons easily, such as metals and nonmetals, are most likely to form ionic bonds. This is because they can transfer electrons from one atom to another to achieve a stable electron configuration.
Lithium would be most likely to lose electrons in a chemical bond.