Chapter 3: Atomic Structure and the Periodic Table Beta
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SCH4U Chemistry · 3.3
Comparing metal sulfates near a magnet
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Comparing metal sulfates near a magnet
- Ranking MnSO₄, CuSO₄ and ZnSO₄ by magnetic attraction using the unpaired 3d electrons of each metal ion.
- The sulfate ion has all electrons paired, so only the metal ion matters.
- More unpaired electrons give a stronger pull toward the magnet.
- Mn²⁺ [Ar]3d5: 5 unpaired, strongest pull.
- Cu²⁺ [Ar]3d9: 1 unpaired, weak pull.
- Zn²⁺ [Ar]3d10: 0 unpaired, diamagnetic.