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QuestionChemistry

Which of the following is the Lewis dot structure for Silicon (Si)? A. Si B. Si:
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Step 1:
I'll solve this Lewis dot structure problem step by step:

Step 2:
: Determine Silicon's Electron Configuration

- Electron configuration is $$1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{2}
- Silicon (Si) is in Group 14 of the periodic table - Atomic number is 14 - Valence electrons are in the 3s and 3p orbitals - Total valence electrons = 4

Step 3:
: Lewis Dot Structure Rules

- Each valence electron is represented by a dot - Dots are placed around the element's symbol - Dots are distributed to maximize single electrons before pairing

Step 4:
: Construct Lewis Dot Structure

- Place 4 dots around the Si symbol - Distribute dots singly first, then pair up

Step 5:
: Analyze the Given Options

- Option A (Si) has no dots - Option B (Si:) has 4 dots around the symbol

Step 6:
: Determine Correct Answer

- Option B (Si:) correctly represents Silicon's Lewis dot structure

Final Answer

Si: The Lewis dot structure for Silicon shows 4 dots around the Si symbol, representing its 4 valence electrons.