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A neutral atom of an element has 2 electrons with n=1, 8 electrons with n=2, and 5 electrons with n=3. Write its electron configuration and find:
A) atomic number B) total number of s electrons

C) total number p electrons
D) total number of protons
E)Paired electrons
F)unpaired electrons

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  1. 1s2 2s2 2p6 3s2 3p3
    Count the electrons; that's the atomic numbr and you didn't need to write the electron configuration to do that. You can count from the problem.
    C. Count the p. protons must = total electrons
    E. Can you find them?

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