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Any atom containing six protons must be the element:
ACadmium
BCaesium
CCarbon
DCalcium
Answer & Solution
Correct answer: C. Carbon
1. The proton count fixes the identity.
2. Six protons corresponds to one element.
3. That element is carbon.
_Source: OpenStax Chemistry 2e, Chapter 2, Atoms, Molecules, and Ions._
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