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Electron Configurations · Paper 1 — Free Chemistry SL Practice Questions
1FoundationMCQElectron arrangement and atomic orbitals1 markPaper 1~2 min
In a multi-electron atom, the relative energies of sublevels are influenced by electron penetration and shielding. Which statement correctly describes the relative energies of the 3d and 4s sublevels in a multi-electron atom such as calcium?
Solutions
2FoundationMCQElectron arrangement and atomic orbitals1 markPaper 1~2 min
Which electron configuration represents a ground-state sulfur atom (Z=16)?
Solutions
3FoundationMCQAufbau principle, Pauli exclusion principle, Hund's rule1 markPaper 1~2 min
A phosphorus atom has atomic number 15. Which correctly shows the electron arrangement in the 3p subshell of a phosphorus atom in its ground state, in accordance with Hund's rule?
Solutions
4MasteryMCQElectron arrangement and atomic orbitals1 markPaper 1~2 min
How many atomic orbitals are present in the n=4 principal energy level?