A sodium atom has an electron configuration of 1s22s22p63s1. if the sodium atom becomes ionized, its new electron configuration will be the same as which element? select one:

a. neon

b. magnesium

c. lithium

d. potassium

It can be seen in the electron configuration of sodium that there are 11. Now, if we sodium atom is ionized, it will lose one of its electrons to make it positive. Thus, there will be 10 atoms only. The only atom capable for thus is configuration is neon, letter A.