19,879
edits
Changes
no edit summary
|[[File:ArgonSymbol.png|center|200px]]
|-
| style="height:20px; width:200px; text-align:center;" colspan = "2"|[[Argon]] always has 10 18 [[proton]]s. The most [[Stable Isotope|stable]] [[isotope]] has 10 22 [[neutron]]s.
|}