Manganese, 25 Mn Manganese Pípè / ˈ m æ ŋ ɡ ə n iː z / (MANG -gə-neez ) Ìhànsójú silvery metallic Ìwúwo átọ̀mù A r, std (Mn) 54.9380 43(2) Manganese ní orí tábìlì àyè Nọ́mbà átọ̀mù (Z ) 25 Ẹgbẹ́ group 7 Àyè àyè 4 Àdìpọ̀ Àdìpọ̀-d Ẹ̀ka ẹ́límẹ́ntì Transition metalÌtò ẹ̀lẹ́ktrọ́nù [Ar ] 3d5 4s2 Iye ẹ̀lẹ́ktrọ́nù lórí ìpele kọ̀ọ̀kan 2, 8, 13, 2 Àwọn ohun ìní ara Ìfarahàn at STP solid Ìgbà ìyọ́ 1519 K (1246 °C, 2275 °F) Ígbà ìhó 2334 K (2061 °C, 3742 °F) Kíki (near r.t. ) 7.21 g/cm3 when liquid (at m.p. ) 5.95 g/cm3 Heat of fusion 12.91 kJ/mol Heat of 221 kJ/mol Molar heat capacity 26.32 J/(mol·K) pressure P (Pa) 1 10 100 1 k 10 k 100 k at T (K) 1228 1347 1493 1691 1955 2333
Atomic properties Oxidation states −3, −2, −1, 0, +1, +2 , +3, +4 , +5, +6, +7 Àdàkọ:Infobox element/symbol-to-oxidation-state/comment Electronegativity Pauling scale: 1.55 energies Atomic radius empirical: 127 pm Covalent radius 139±5 (low spin), 161±8 (high spin) pm Color lines in a spectral range Spectral lines of manganese Other properties Natural occurrence primordial Crystal structure (bcc) Speed of sound thin rod 5150 m/s (at 20 °C) Thermal expansion 21.7 µm/(m·K) (at 25 °C) Thermal conductivity 7.81 W/(m·K) Electrical resistivity 1.44 µ Ω·m (at 20 °C) Magnetic ordering paramagnetic Young's modulus 198 GPa Bulk modulus 120 GPa Mohs hardness 6.0 Brinell hardness 196 MPa CAS Number 7439-96-5 Main isotopes of manganese Isotope Abundance Half-life (t 1/2 ) Decay mode Product 52 Mn syn 5.591 d ε - 52 Cr β+ 0.575 52 Cr γ 0.7, 0.9, 1.4 - 53 Mn trace 3.74 ×106 y ε - 53 Cr 54 Mn syn 312.3 d ε 1.377 54 Cr γ 0.834 - 55 Mn 100% 55 Mn is stable with 30 neutrons
Àdàkọ:Category-inline | references
Itokasi
This article uses material from the Wikipedia Yorùbá article Manganisi , which is released under the Creative Commons Attribution-ShareAlike 3.0 license ("CC BY-SA 3.0") ; additional terms may apply (view authors ). Gbogbo ohun inú ibí yìí wà lábẹ́ CC BY-SA 4.0 àyàfi tí a bá sọ pé kò rí bẹ̀ẹ̀. Images, videos and audio are available under their respective licenses. ®Wikipedia is a registered trademark of the Wiki Foundation, Inc. Wiki Yorùbá (DUHOCTRUNGQUOC.VN) is an independent company and has no affiliation with Wiki Foundation.