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Chemistry, 08.10.2020 05:01 Leeyah9587

What is the electron configuration for helium (He)? A. 1s1
B. 1s2
C. 1s22s1
D. 1s22s2

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What is the electron configuration for helium (He)? A. 1s1
B. 1s2
C. 1s22s1
D. 1s...
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