7 electrons
There are 7.
Fluorine has 9 in total. 7 in the outermost shell
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.
There are 2 electrons on the outermost shell of calcium.
Sulphur has 6 electrons in its outermost shell.
thallium has 3 electrons in outermost shell.
Fluorine has 7 valence electrons.
It has 5 electrons in its outermost shell.
6 electrons.
2 electrons.
Fluorine and Chlorine are in the 7th group. They have 7 electrons in outer shell.
There is no Iodone atom, there is however an Iodine atom that has seven valence electrons or seven electrons in outermost shell.
9