ah thats something i guess. none of the official documentation says what you are saying. they can remove that feature at any time

http://ionomy.wiki/index.php?title=Atoms
http://ionomy.wiki/index.php?title=Electrons
https://ionomy.zendesk.com/hc/en-us/articles/219048627-What-Are-Electrons-and-what-are-their-uses-
https://ionomy.zendesk.com/hc/en-us/articles/218551058-What-Are-Atoms-


ps:
buying ingame: 150 electrons 9.99$
selling ionomy.com: 150 electrons for 7.21091850 ions or 1.51$
1500 atoms required, only costing 0.3btc

meh