Germanium is diamagnetic because of the pairing of its electrons. Here's a breakdown of why:

* Electronic Configuration: Germanium has an electronic configuration of [Ar] 3d¹⁰ 4s² 4p².

* Pairing of Electrons: The 4s and 4p orbitals are completely filled with electrons. This means each electron in these orbitals has a paired counterpart with opposite spin.

* Diamagnetism: When all electrons are paired, they effectively cancel out each other's magnetic moments. This absence of unpaired electrons results in a very weak repulsion from an external magnetic field, leading to the diamagnetic property.

Key Points:

* Paramagnetism vs. Diamagnetism: Paramagnetic materials have unpaired electrons, resulting in a weak attraction to a magnetic field. Diamagnetic materials have all electrons paired, leading to a weak repulsion from a magnetic field.

* Weak Effect: Diamagnetism is a very weak effect compared to ferromagnetism (strong attraction to magnets).

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