Question

Why is 3d1 written first while writing the electronic configuration of Scandium?​

Answer 1

IT IS 3d IS WRITTEN THAT WAY DUE TO THE AUFBAUS PRINCIPLE. IT FOLLOWS THE. n+l rule

FOR EXAMPLE

3d=3+2=5

4s=4+0=4

HENCE 3d IS WRITTEN FIRST

THE VALUES IF l FOR DIFFERENT ORBITALS ARE

s=0

p=1

d=2

f=3

g=4