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Strontium's atomic number is 38. So, it has 38 protons and 38 electrons if it's neutral. Strontium is a group 2 element and so has 2 valence electrons. Thus, the rest of the 36 electrons are core electrons.

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13y ago
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13y ago

It has (going from inner to outer) 2, 8, 18, 8, 2

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14y ago

36 electrons with a +2 charge

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Q: How many electrons does strontium has on its outer shell?
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