Q
QuestionChemistry

How many valence electrons does gallium (Ga, atomic no. = 31) have?
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Answer

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Step 1
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Step 2
: Determine the electron configuration of gallium

- The electron configuration is $$1s^{2} 2s^{2} 2p^{6} 3s^{2} 3p^{6} 4s^{2} 3d^{10} 4p^{1}
- Gallium's atomic number is 31, so it has 31 electrons

Final Answer

Gallium (Ga) has 3 valence electrons.