Some of the 3d transition metals do not obey the Aufbau principle when filling valence electrons. Which of the following statements is true about the 3d transition metals and filling their valence electrons? The energies of the 4s and 3d orbitals is very similar. Zn* and Cu both have 1 unpaired electron in the ground state. The energy of the 4s and 4p orbitals is very similar. Electron-electron repulsion in the 4s orbital can be minimized by filling an empty 3d orbital. Zn and Cu have the same number of 4s electrons in the ground state.
Some of the 3d transition metals do not obey the Aufbau principle when filling valence electrons. Which of the following statements is true about the 3d transition metals and filling their valence electrons? The energies of the 4s and 3d orbitals is very similar. Zn* and Cu both have 1 unpaired electron in the ground state. The energy of the 4s and 4p orbitals is very similar. Electron-electron repulsion in the 4s orbital can be minimized by filling an empty 3d orbital. Zn and Cu have the same number of 4s electrons in the ground state.
Chemistry
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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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Transcribed Image Text:Some of the 3d transition metals do not obey the Aufbau principle when filling valence electrons. Which of the following statements is true about the 3d transition metals and filling their valence electrons?
- The energies of the 4s and 3d orbitals is very similar.
- Zn²⁺ and Cu both have 1 unpaired electron in the ground state.
- The energy of the 4s and 4p orbitals is very similar.
- Electron-electron repulsion in the 4s orbital can be minimized by filling an empty 3d orbital.
- Zn and Cu have the same number of 4s electrons in the ground state.
Expert Solution
Step 1: Aufbau principle
According to Aufbau principle, in the ground state of an atom electrons fill lower energy subshells first then they fill higher energy subshells.
The energy order of subshells -
1s<2s< 2p< 3s< 3p<4s<3d< 4p< 5s<4d<5p<6s<4f<5d<6p<7s<5f< 6d<7p
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