Here is the full list of all 11 Cyclotronica achievements.
Collect all of the Alkali Metals.
Collect all of the Alkaline Earth Metals.
Collect all of the Transition Metals.
Collect all of the Metalloids.
Collect all of the Non Metals.
Collect all of the Halogens.
Collect all of the Actinides.
Collect all of the Lanthanides.
Collect all of the Noble Gases.
Split the Atom!
Collect every Element!