Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions


There's a mistake that Lanthanides Series don's have atomic number from 58 to 71 , instead it is from 57 to 71.

You should know that the Periodic Table is not of 2D view. It's a 3D table composite's of all the elements(except 58 to 71 & 90 to 103) as the plane and the atomic number (58 to 71) & (90 to 103) behind the plane.

The Lanthanides & Actinides series which goes back the plane has Lanthanum & Actinium as their first element and also on the plane. This might be the reason behind the naming in correspondence to their first element.
0 0 0
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts