Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
There is great debate in the scientific community over where lanthanides and actinides should be placed within the standard periodic table. There is no universally agreed upon standard for this, and different mediums will often choose different options. Each of the four main alternatives are justifiable, though there are pros and cons to each as well.
Why is there not one option?
This section is empty. You can help by adding to it. (April 2014)
Main alternatives
This section is empty. You can help by adding to it. (March 2014)
Lanthanide and actinides' placement in other periodic tables
This section is empty. You can help by adding to it. (March 2014)
References
External links
This redirect has not been added to any content categories. Please help out by adding categories to it so that it can be listed with similar redirects. (March 2014)