Mn
Manganese
Chikamu 25 · 54.938 u
Manganese is a hard, brittle transition metal essential for steel production and biology.
Maitiro ekushandisa
| Atomic radius: | 54.938 u |
| Kuomarara | 7.44 g/cm³ |
| Kutonhora Point | 1519.0 K |
| Kutonhora Point | 2334.0 K |
| Kuoneka | Silvery gray metallic |
| State at Room Temp | _Kukanganisa: |
Chemical zvinhu
| Electronegativity | 1.55 (Pauling) |
| 1st Ionization Energy | 717.3 kJ/mol |
| Electronegativity: | -50.0 kJ/mol |
| Oxygen | +1, +2, +3, +4, +5, +6, +7 |
Atomic Properties
| Kuisa Kugadzirisa | [Ar] 3d5 4s2 |
| Atomic radius: | 127.0 pm |
| Covalent Radius | 139.0 pm |
| Van der Waals radius | 197.0 pm |
Discovery
| Yakawanikwa ne | Johan Gottlieb Gahn |
| Kuonekwa kwegore | 1774 |
| _Panzvimbo: | Stockholm, Sweden |
| Akapihwa zita mushure me | Latin'magnes' zvinoreva magnet, kana Italian'manganese' |
Nezve Manganese
Manganese isiri-yemushonga, asi inowanzowanikwa muzvisikwa zvakaita sezvirwere, zvirwere, uye mvura. Manganese inowanzoshandiswa semushonga wekudzivirira, asi zvakare inoshandiswa semushonga wekudzivirira chirwere cheshuga, uye inoshandiswawo semushonga wekudzivirira chirwere cheshuga.
Mashandisiro & Maapplication
Zvigadzirwa zvesimbi, mabhatiri emvura, maalloys ealuminium, potassium permanganate, uye decolorizer egirazi.
Nhoroondo yemitambo
Manganese inodiwa zvikuru mukuita kwephotosynthesis - pasina, michero haigone kuparadza madziro kuti iite oxygen yatinodenga.
Isotopes
| Mamwe marudzi ezvinyorwa | Kuwanda | Half-Life | _Kuchengeta |
| 55 | 1.0% | - | _Ndiani |
Kuisa Kugadzirisa
[Ar] 3d5 4s2