QQuestionChemistry
QuestionChemistry
Lithium has 3 electrons, 3 protons, and 4 neutrons. Which diagram shows the correct position of electrons, neutrons, and protons in a Lithium atom?
CHOOSE Either picture 1 2 3 or 4
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Answer
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Step 1:I'll solve this step by step, focusing on the atomic structure of Lithium.
Step 2:: Understand the Atomic Composition
- Lithium has: * 3 protons (atomic number) * 3 electrons (to balance the protons) * 4 neutrons (given in the problem statement)
Step 3:: Recall Atomic Structure Rules
- Protons and neutrons are located in the nucleus - Electrons orbit around the nucleus in electron shells - The first shell can hold up to 2 electrons - The second shell can hold up to 8 electrons
Step 4:: Analyze the Diagram Requirements
- The correct diagram must show: * 3 protons in the nucleus * 4 neutrons in the nucleus * 3 electrons in the electron shells
Step 5:: Evaluate the Diagrams
Looking at the provided image (img- 0.jpeg), the diagram shows: - Nucleus with 3 protons and 4 neutrons (correct) - 2 electrons in the first shell - 1 electron in the second shell
Step 6:: Verify Electron Configuration
- First shell: 2 electrons ✓ - Second shell: 1 electron ✓ - Total electrons: 3 ✓
Final Answer
Picture 4 shows the correct position of electrons, neutrons, and protons in a Lithium atom.
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