Problem: How many inner shell (core) electrons do the following elements have, respectively? Hydrogen, Helium, Lithium and Berylium (A) 1, 1, 1, 1 (B) 0, 0, 1, 1 (C) 0, 0, 2, 1 (D) 0, 0, 2, 2 (E) 2, 2, 2, 2

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How many inner shell (core) electrons do the following elements have, respectively?

Hydrogen, Helium, Lithium and Berylium

(A) 1, 1, 1, 1

(B) 0, 0, 1, 1

(C) 0, 0, 2, 1

(D) 0, 0, 2, 2

(E) 2, 2, 2, 2

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