Multiple choice

The electronic configuration of Sc+ (For Sc, atomic number is 21) is

  1. (Ar) 4s2

  2. (Ar) 3d1 4s2

  3. (Ar) 3d1 4s1

  4. None of these

  5. -

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Sc+ means that one electron has been donated, i.e. its electronic configuration would be less than one electron from scandium.