Respuesta :
- Ag+ = No unpaired electron
- Mn3+ = 4 unpaired electron
- Cr3+ = 3 unpaired electron
What are unpaired electrons?
- An unpaired electron is an electron that occupies an atom's orbital single rather than as part of an electron pair.
- Each atomic orbital of an atom can hold two electrons with opposing spins.
- Because the formation of electron pairs is generally energetically advantageous, whether as a chemical bond or as a lone pair, unpaired electrons are extremely uncommon in chemistry because an entity carrying an unpaired electron is usually quite reactive.
To find the unpaired electrons:
- Ag+ represents the d10 system. Because there are no unpaired electrons, the system is diamagnetic.
- Mn3+ has the electronic structure [Ar]3d44s0. In 3d, there are four unpaired electrons.
- Because of the loss of three electrons, the chromium ion Cr3+ has 24e3e=21e.
Therefore, unpaired electrons are:
- Ag+ = No unpaired electron
- Mn3+ = 4 unpaired electron
- Cr3+ = 3 unpaired electron
Know more about unpaired electrons here:
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