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[Rn] 7s2 is the noble gas notation for radium. A link is provided to the Wikipedia article on radium.

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15y ago
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14y ago

Electron configuration of radon is: [Xe]4f145d106s26p6.

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14y ago

The electron configuration of radium is: [Rn]7s2.

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14y ago

The electron configuration of radium is (short form): [Rn]7s2.

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14y ago

The electron configuration of radon is: [Xe]4f14 5d10 6s2 6p6.

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15y ago

[Rn]7s2

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11y ago

[Rn]7s2

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Q: What is the periodic symbol for radon?
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