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QuestionChemistry

A lithium atom has three protons, three neutrons, and three electrons. What is the overall charge on this atom? A. + 1 B. + 3 C. 6 D. - 3
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Answer

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Step 1:
I'll solve this step-by-step following the precise LaTeX and formatting guidelines:

Step 2:
: Determine the number of protons

- Total positive charge from protons: $$3 \times (+1) = +3
- A lithium atom has 3 protons

Step 3:
: Determine the number of electrons

- Total negative charge from electrons: $$3 \times (-1) = -3
- A lithium atom has 3 electrons

Step 4:
: Calculate the overall charge

- $$+3 + (-3) = 0
- Overall charge = Charge from protons + Charge from electrons

Step 5:
: Verify the result

- The number of protons equals the number of electrons - This means the atom is electrically neutral

Final Answer

The correct answer is that the lithium atom has a neutral charge of 0. Key Insight: In a neutral atom, the number of protons (positive charges) equals the number of electrons (negative charges), resulting in a net charge of zero.