Manganese

ʻO ka manganese he mea kemika me ka hōʻailona Mn, helu ʻātoma 25, a me ka nui atomika pili 54.9380, he metala hoʻololi hina hina, ʻoʻoleʻa, palupalu, a ʻālohilohi. ʻO ka mānoanoa pili he 7.21g/cm³ (a, 20℃). Ka helu hehee 1244℃, wahi paila 2095℃. ʻO ka resistivity he 185 × 10Ω·m (25℃).

ʻO Manganese he metala keʻokeʻo keʻokeʻo paʻakikī me ka ʻōnaehana kristal cubic a tetragonal paha. ʻO ka mānoanoa pili he 7.21g/cm ³ (a, 20 ℃). Ka helu heheʻe 1244 ℃, kahi e hoʻolapalapa ai 2095 ℃. ʻO 185×10 Ω· m (25 ℃) ka resistivity. ʻO ka manganese he metala hoʻoheheʻe e ʻā ana i loko o ka oxygen, oxidizes ma luna o kona ʻili i ka ea, a hiki ke hui pololei me nā halogens e hana i nā halides.

ʻAʻole noho ka manganese ma ke ʻano he mea hoʻokahi i ke ʻano, akā maʻamau ka manganese i ke ʻano o nā oxides, silicates, a me nā carbonates. Hoʻolaha nui ʻia ka manganese ore ma Australia, Brazil, Gabon, India, Russia, a me South Africa. Aia ma kahi o 24% manganese i loko o nā nodule manganese ma ke kai o ka Honua. ʻO ka mālamaʻana i nā kumu waiwai manganese ma'Afelika he 14 billion tons, no ka 67% o ka honua..