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Vedmedyk [2.9K]
3 years ago
7

Which is the first element in the periodic table to have an electron configuration in the 4th energy level?

Chemistry
2 answers:
Tju [1.3M]3 years ago
7 0
The answer is potassium:)
solong [7]3 years ago
4 0

The answer is potassium .......

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