Make a rule: If you knew the number of valence electrons in a nonmetal atom, how would you determine the valence of the element? (Hint: Ignore hydrogen for now.)
Understand the Problem
The question is asking how to determine the valence of a nonmetal element based on its number of valence electrons. It prompts the user to create a rule for this process, excluding hydrogen from consideration.
Answer
Subtract valence electrons from eight.
The final answer is to determine the valence of a nonmetal element, subtract the number of valence electrons in the atom from eight.
Answer for screen readers
The final answer is to determine the valence of a nonmetal element, subtract the number of valence electrons in the atom from eight.
More Information
Nonmetals aim to complete their outer electron shell to achieve a stable electron configuration, usually eight in total.
Tips
Common mistakes include not recognizing that the subtraction is done from eight or miscounting valence electrons.
Sources
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