What is the element in which at least one electron is in the d-orbital?

Ar...K...Sc...Ca...or None

Sc (4s2 3d1) only. Scandium or Sc has exactly one electron in the d-orbital. God bless :)
neutral Sc has 6 d electrons.

The answers post by the user, for information only, FunQA.com does not guarantee the right.

More Questions and Answers:
  • Why soil and sea water are mixture?
  • What is the mass of copper will be formed if 2.7g of aluminium are used?
  • True or False--The amount of heat absorbed in a chemical reaction is measured with a thermometer.?
  • Science question?
  • Is this endothermic or exothermic?
  • Chemistry help please?
  • What is the pH of the solution?
  • What does water hardness mean? How is hard water different from soft water?