Question

Na+plus has completely filled K and l shell explain​

Answer 1

atomic number of Na: 11

electronic config. of Na: 2, 8, 1

Na+ means sodium has donated one electron to another atom

so now electronic config of Na+ becomes: 2, 8

Hence K and L orbits are completely filled. (2, 8)

Answer 2

Na+ have 10 electrons

so K shell have maximum 2 electrons

L shell have maximum 8 electrons