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What is the electronic configuration of the iron (Fe) atom?
What is the electronic configuration of the iron (Fe) atom?
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What is the electronic configuration of the iron (Fe) atom?
[Ar] 4s2 3d6
[Ar] 4s2 3d5
[Ar] 4s1 3d7
[Ar] 4s2 3d4
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Iron (Fe) has 26 electrons, and its electronic configuration is [Ar] 4s2 3d6.
Questions & Step-by-step Solutions
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Q: What is the electronic configuration of the iron (Fe) atom?
Solution:
Iron (Fe) has 26 electrons, and its electronic configuration is [Ar] 4s2 3d6.
Steps: 11
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Step 1: Understand that an atom's electronic configuration shows how its electrons are arranged.
Step 2: Know that iron (Fe) has an atomic number of 26, which means it has 26 electrons.
Step 3: Recognize that electrons fill energy levels in a specific order, starting from the lowest energy level.
Step 4: The first two electrons fill the 1s orbital: 1s2.
Step 5: The next two electrons fill the 2s orbital: 2s2.
Step 6: The next six electrons fill the 2p orbital: 2p6.
Step 7: The next two electrons fill the 3s orbital: 3s2.
Step 8: The next six electrons fill the 3p orbital: 3p6.
Step 9: The next two electrons fill the 4s orbital: 4s2.
Step 10: The remaining electrons fill the 3d orbital: 3d6.
Step 11: Combine all the filled orbitals to write the complete electronic configuration: [Ar] 4s2 3d6.
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