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henry3369
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Assuming all orbitals are filled, which of these orbitals is most shielded: 1s, 3s, 4d, 5s
The answer is 4d, but I chose 5s. Can someone explain? I thought the electrons in the d block are considered core electrons and contribute to the shielding, but feel more pull from the nucleus because of this and the 5s orbital is higher in energy and the electrons are valence electrons so they experience the most amount of shielding. Isn't this why electrons are removed from the 5s block before the 4d because the 5s orbital have more energy?
The answer is 4d, but I chose 5s. Can someone explain? I thought the electrons in the d block are considered core electrons and contribute to the shielding, but feel more pull from the nucleus because of this and the 5s orbital is higher in energy and the electrons are valence electrons so they experience the most amount of shielding. Isn't this why electrons are removed from the 5s block before the 4d because the 5s orbital have more energy?