QQuestionChemistry
QuestionChemistry
How many total valence electrons are present in copper (Cu)?
Select one:
A. 09
B. 64
C. 29
D. 11
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Answer
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Step 1:I'll solve this step by step using the proper LaTeX formatting:
Step 2:: Determine Copper's Atomic Number and Electronic Configuration
- Its electron configuration is $$1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 4s^{1} 3d^{10}
- Copper (Cu) has an atomic number of 29
Step 3:: Identify Valence Electrons
- Count of valence electrons: $$1 + 10 = 11
- Valence electrons are those in the outermost shell - For transition metals like copper, valence electrons include electrons in the s and d orbitals of the outermost shell
Step 4:: Verify the Number of Valence Electrons
- The total number of valence electrons in copper is 11
Final Answer
Explanation: Copper has 11 valence electrons, which include 1 electron in the 4s orbital and 10 electrons in the 3d orbital, making option B the correct choice.
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