• Distribute electrons in the atomic orbitals:
s _ 1 orbital
p _ _ _ 3 orbitals
d _ _ _ _ _ 5 orbitals
s orbital → can hold a maximum of 2 electrons
p orbitals → can hold a maximum of 6 electrons
d orbitals → can hold a maximum of 10 electrons
f orbitals → can hold a maximum of 14 electrons
What are the electron configurations for the Fe3+ and S2- ions?
Fe3+: 1s22s22p63s23p63d104s1 S2-: 1s22s22p63s23p6
Fe3+: 1s22s22p63s23p63d104s1 S2-: 1s22s22p63s23p2
Fe3+: 1s22s22p63s23p63d5 S2-: 1s22s22p63s23p6
Fe3+: 1s22s22p63s23p63d5 S2-: 1s22s22p63s23p2
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