Question

2s 3p 1s what is the answer of this question?​

Answer 1

Answer:

Element Atomic number Electron configuration

magnesium 12                   1s22s22p63s2

aluminum 13                   1s22s22p63s23p1

silicon         14                    1s22s22p63s23p2

phosphorus 15                   1s22s22p63s23p3