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electrons 4. (3 num r of valence electr ns 5. number of electron(s) it has to lose to become stable 6. number of shells holding the maximum number of electrons 19 G. 20 Circle the letter of the best answer. 7. What is the maximum number of electrons that the first electron shell can hold? 2007 McGraw-Hill Ryerson Limited Section 2.3 37
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