why cobalt and iron called magnetic substance
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Cobalt, Nickel, Neodymium are ferromagnetic substances. These substances are special in the sense; first of all they have unpaired electrons in the valence orbital which act as magnetic dipoles. These substances with unpaired electrons are called paramagnetic substances.
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Iron, Cobalt, Nickel, Neodymium are ferromagnetic substances. These substances are special in the sense; first of all they have unpaired electrons in the valence orbital which act as magnetic dipoles. These substances with unpaired electrons are called paramagnetic substances
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