In fact an electron has no valency, though it is equal to a -1 (minus one) charged anion like Cl-, having a valency of -1
It is generally called the valence electron as it determines the valency of electrons.
A valance electron is one that is associated with an atom. The valence orbit is the one that electron travels in.
The valency of hydrogen is +1 because it has a tendency to lose an electron while combining with an Elelment. This gives it a positive valency.
The valency of lithium is 1. It has one valence electron in its outer shell.
The valency of iodide is -1. This means that iodide typically gains one electron to achieve a stable electron configuration in chemical reactions.
The valency of sodium is +1
-1 valency
The valency of fluorine is 1. It typically forms one bond by gaining one electron to achieve a full outer electron shell.
"Cuprous" is an archaic term for what today is called copper (I), Cu+1.
single valency. last orbit has 7 electrons.
Electron Shells
Chlorine has a valency of 1, meaning it tends to gain one electron to achieve a full outer electron shell. This electron configuration allows chlorine to form a stable chloride ion, Cl-.