Plutonium, 94 Pu Pabaosan (ploo-TOH -nee-əm ) Cingakan putih masawang pérak, daki dados klau selem yén keni udara Nomor massa [244]
Wilangan atom (Z ) 94 Watek n/a Période période 7 Blok blok-f Konpigurasi éléktron [Rn ] 5f6 7s2 Éléktron per kulit 2, 8, 18, 32, 24, 8, 2 Pase ring STP padet Titik lebur 912.5 K (639.4 °C, 1182.9 °F) Titik didih 3505 K (3228 °C, 5842 °F) Kapadetan (nampek s.r. ) 19.85 (239 Pu)[ 1] g/cm3 ri kala éncéh (ring t.l. ) 16.63 g/cm3 Panes fusi 2.82 kJ/mol Panes panguapan 333.5 kJ/mol Kapasitas panes molar 35.5 J/(mol·K) Tekanan uap
P (Pa)
1
10
100
1 k
10 k
100 k
at T (K)
1756
1953
2198
2511
2926
3499
Paindikan oksidasi +2, +3, +4 , +5, +6, +7, +8 (oksida ampotér ) Kaéléktronégatipan skala Pauling: 1.28 Wasa ionisasi Jeriji atom émpiris: 159 pm Jeriji kovalén 187±1 pm Garis spéktral saking plutoniumStruktur kristal monoklin Kagelisan swara 2260 m/s Ékspansi térmal 46.7 µm/(m⋅K) (ring 25 °C) Konduktivitas térmal 6.74 W/(m⋅K) Resistivitas listrik 1.460 µΩ⋅m (ring 0 °C) bacakan magnétik paramagnetic Modulus Young 96 GPa Modulus Shear 43 GPa Rasio Poisson 0.21 Nomor CAS 7440-07-5 Pangaranan saking planét alit Pluto , punika kaparinamain saking klasik déwa jagat sor Pluto Panemuan Glenn T. Seaborg , Arthur Wahl , Joseph W. Kennedy , Edwin McMillan (1940–1941)
Kategori:Plutonium | pustaka
Plutonium silih tunggil datu kimia antuk simbol Pu miwah wilangan atom 94. Punika logam aktinida antuk cingakan klau masawang pérak miwah manados pangotor pinaka keni udara, miwah ngawentuk lapisan buuk pinaka kaoksidasi . Daru ketah nyané nganikayang nem alotrop miwah papat paindikan oksidasi . Maréaksi sareng karbon , halogén , nitrogén , silikon , miwah hidrogén . Ri kala keni udara ayun, ngawentuk oksida miwah hidrida sané prasida ngajimbaranh sampel nganti 70% volume, ring galah nyané ngelupas manados bubuk punika piroforik . Punika radioaktip miwah prasida kaakumulasi ring balung , sané ngardi pangamongan plutonium mabaya.
↑ Kapeték saking baat atom miwah volume atom. Sel satuan, sané madaging 16 atom, ngelah volume 319,96 kubik, mawit Siegfried S. Hecker (2000). "Plutonium and its alloys: from atoms to microstructure" (PDF) . Los Alamos Science . 26 : 331. . This gives a density for 239 Pu of (1.66053906660×10−24 g/dalton×239.0521634 daltons/atom×16 atoms/unit cell)/(319.96 Å3 /unit cell × 10−24 cc/Å3 ) utawi 19.85 g/cc.
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