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I. Rewrite the electron configurations for the atoms below using core electron notation. II. Determine the number of valence electrons for each atom. B 1s22s22p1 Ca 1s22s22p63s23p64s2 Cl 1s22s22p63s23p5

I. Rewrite the electron configurations for the atoms below using core electron notation. II. Determine the number of valence electrons for each atom. B 1s22s22p1 Ca 1s22s22p63s23p64s2 Cl 1s22s22p63s23p5

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I. Rewrite the electron configurations for the atoms below using core electron notation. II. Determine the number of valence electrons for each atom. B 1 s 2 2 s 2 2 p 1 Ca 1 s 2 2 s 2 2 p 6 3 s 2 3 p 6 4 s 2 Cl 1 s 2 2 s 2 2 p 6 3 s 2 3 p 5

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