QQuestionChemistry
QuestionChemistry
Silicon (Si) is an element that helps computers run. How many valence electrons does silicon have?
Write your answer as a number, not the word form of the number.
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Answer
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Step 1:I'll solve this step-by-step following the specified LaTeX and formatting guidelines:
Step 2:: Determine Silicon's Position in the Periodic Table
- Silicon (Si) is located in Group 14 (also known as the carbon group) on the periodic table - Group number corresponds to the number of valence electrons
Step 3:: Calculate Valence Electrons
- Silicon is in Group 14, which means it has $$14 - 10 = 4$$ valence electrons
- For main group elements, the group number directly indicates the number of valence electrons
Step 4:: Verify Electron Configuration
- Silicon's electron configuration is $$1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{2}
- The outer shell (3s and 3p) contains 4 electrons, confirming our group number calculation
Final Answer
4
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