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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.
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.
Hydrogen
Fluorine.
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.
This chemical element is fluorine (F).
Na, sodium, should have the lowest first ionization energy of those four elements.
Arsenic.
Francium has the lowest electronegativity and fluorine the highest.
This is francium because having a very lower electronegativity can loss easily an electron.
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.
Chlorine is in group 17. It easily accepts an electron from another element to fill its valence shell. As it takes one electron, its oxidation number changes to -1.
Li, or lithium, is the element most likely to lose electrons in a chemical bond. Lithium has 1 valence electron.
Atoms do not always lose electrons. Electrons can be gained too. Atoms always try to have their outer most shell filled, and some atoms such as ones of potassium can easily lose an electron rather than gain an electron. So it would lose an electron to a different atom so that it would have a full outer shell and the other atom would also have a full outer shell.
Lithium would be most likely to lose electrons in a chemical bond.
This rare metal has the lowest electronegativity on the periodic table. With an electronegativity number of 0.7 this element donates it's electron very easily to the higher electronegative nonmetals.