සැකිල්ල:Infobox element/period-8-elements/overview/check

|- | style="text-align:center;" | ① | style="" | E ()

| style="border-right: 2px solid grey; " | theor.

| style="no=" | R

| style="" | [[:]] R,
[[:ප්‍රවර්ගය:|cat:E]] (0)

| style="border-right: 2px solid grey; " | {{IB E R}}

| style="" | Isotopes of R,
cat:Isotopes E (0)

| style="border-right: 2px solid grey; " | {{සැකිල්ල:Infobox isotopes}} R

| [ unk] |

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