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Chemistry, 26.12.2019 22:31 brucewayne390

Which of these periods contain elements with electrons in s, p, d, and f orbitals?
a. periods 1–3
b. periods 1-4
c. periods 3-5
d. periods 6-7

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Which of these periods contain elements with electrons in s, p, d, and f orbitals?
a. periods...
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