+1
+1
18
18
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.
an negative charge occurs :)
+1
+1
+1
18
18
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.
This atom become a cation (positive).
an negative charge occurs :)
Yes. A particle that loses an electron becomes an ion with a positive charge. A particle that gains an electron becomes an ion with a negative charge.
2+
That is exactly what a definition of an ion is. Ion's have charges. That's what they are. WHY? They lose or gain electrons. By GAINING an electron, you have a negative (-) charge. By LOSING an electron, you have a positive (+) charge.
Lithium does not have a '0' charge. Its electron configuration is 2,1. This means there is one valence electron in its outer shell. Losing this electron will make Lithium have a full shell (2 only) which all atoms try to achieve, therefore Li has a +1 charge because it loses an electron to gain noble gas configuration.