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Radon has 8 valence electrons (electrons in it's outer shell) so does Ne, Ar, Kr, Xe. Helium is in the same line, but only has 2 valence electrons.

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Sarah G.

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11y ago
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14y ago

2. It's electronic configuration is 2, 8, 18, 32, 18, 8, 2 or [Rn] 7s2.

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14y ago

Radium has two valence electrons.

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14y ago

Radium has two valence electrons.

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14y ago

Radium has two valence electrons.

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Q: How many valence electrons does radon have?
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