It is simply LI meaning 50+1 = 51
13
9
LI stands for the number 51 in Roman numerals.
8
2
Lithium (Li) has the electron configuration 1s2 2s1.
Li plus
The outer shell contains 1 electron, ns1 Li [He] 2s1 K [Ar]4s1
The ions of elements nitrogen (N3-), oxygen (O2-), and fluorine (F-) will have the same electron configuration as a sodium ion (Na+), which is the same as the electron configuration of the noble gas neon.
[He]2S1
lithium+1
Plus 1. Li^+1
Fudge it!
Lithium (Li) should lose 1 electron to get the configuration of the nearest noble gas (He).
The electron configuration and noble gas core for Li+ is that of He: Li+: (1s2, 2s0)
The electron configuration is the number of electrons in each energy level of an element. The electron configuration of Li is, 1s2 2s1. The electron configuration of F is, 1s2 2s2 2p5.