QQuestionChemistry
QuestionChemistry
Construct an electron dot structure, or Lewis dot structure, to express the arrangement of electrons in an atom of helium (He).
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Answer
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Step 1:I'll solve this problem step by step, following the specified LaTeX and formatting guidelines:
Step 2:: Understand the Atomic Structure of Helium
- Helium is a noble gas with atomic number 2 - It has 2 protons in the nucleus - The number of electrons equals the number of protons - Helium has a total of 2 electrons
Step 3:: Determine Electron Configuration
- Helium's electron configuration is $$1s^{2}
- Both electrons occupy the 1s orbital
Step 4:: Create the Lewis Dot Structure
- For helium, the dot structure will show the 2 electrons around the atomic symbol - The electrons will be placed on two sides of the He symbol
Step 5:: Draw the Lewis Dot Structure
\begin{array}{c}
\bullet \quad \text{He} \quad \bullet \end{array}
Step 6:: Verify the Structure
- The structure shows both electrons - Represents the complete outer shell - Demonstrates helium's stable electron configuration
Final Answer
The Lewis dot structure for helium is a helium symbol (He) with two dots representing its two electrons, positioned on opposite sides of the symbol.
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