Fluorine has 7 valence electrons.
9
in a normal F- ion there are 10 electrons total (but 8 in the outer energy level)
Carbon has four electrons in the outermost energy level, which is energy level two. It needs eight electrons to have this energy level filled.
Electrons in the outermost energy shell (valence shell) have the most energy.
The best modern answer would involve quantum chemistry, but an easier to understand explanation is that the outermost electrons in fluorine are much closer to the nucleus that provides the attraction to hold the electrons and nucleus together as an atom than are the outermost electrons in iodine. This is sometimes called the "screening effect" of inner shell electrons that weakens the attraction between the nucleus and the outer shell electrons in large atoms such as iodine.
9
in a normal F- ion there are 10 electrons total (but 8 in the outer energy level)
valence electrons are the electrons in the outermost energy level
Outermost have more energy than innermost. As electrons move inward, they release energy.
Electrons in the outermost energy shell of an atom are called valence electrons.
Halogens have six valence electrons in the outermost energy level.
Carbon has four electrons in the outermost energy level, which is energy level two. It needs eight electrons to have this energy level filled.
It is in Group 7 on the Periodic table which means it already has 7in its outer shell. The shell needs 8 to be complete so fluorine requires 1 more electron which it gains through ionic or covalent bonding.
Yes. Valence electrons are the electrons found in the outermost shell / energy level
they are referred as valence electrons. These are the electrons in outermost shell.
The chloride ion (Cl-) has 8 electrons on the outermost energy level.
Electrons in the outermost energy shell (valence shell) have the most energy.