18
18
+1
+1
As it has more electron shells between the nucleus and the outermost electron, and as group 1 elements react by losing there outermost electron, the more shielding effect between the nucleus and the electron, the smaller the force of attraction on the electron, so the more readily it will react as less energy is needed to break the bond between the outer electron and the positive nucleus.
Chlorine is a non metal and it reacts by gaining electrons rather than losing inorder to attain a stable electron configuration of the noble gases.
18
+1
+1
+1
+1
The goal (in general) of atoms is to get a full outer shell. Potassium has only one electron in the outer shell, so it wants to give it away to another atom so that it can have that full outer shell. Therefore potassium, lithium, sodium, etc. lose their electrons quickly.
As it has more electron shells between the nucleus and the outermost electron, and as group 1 elements react by losing there outermost electron, the more shielding effect between the nucleus and the electron, the smaller the force of attraction on the electron, so the more readily it will react as less energy is needed to break the bond between the outer electron and the positive nucleus.
Br typically gains one electron to achieve a stable electron configuration, rather than losing electrons.
by goining or losing ane or two electron
Atoms can achieve a stable outer electron arrangement by gaining, losing or sharing valence electrons with other atoms or ions.
Two electrons
Chlorine is a non metal and it reacts by gaining electrons rather than losing inorder to attain a stable electron configuration of the noble gases.