Kalifornium

berkelium ← kalifornium → einsteinium Dy ↑ Cf ↓ (Uqo) 98Cf Tabel periodik
Penampilan
keperakan
Ciri-ciri umum
Nama, lambang, Nomor atom	kalifornium, Cf, 98
Dibaca	/ˌkælɪˈfɔrniəm/ KAL-i-FOR-nee-əm
Jenis unsur	actinide
Golongan, periode, blok	n/a, 7, f
Massa atom standar	(251) [1]
Konfigurasi elektron	[Rn] 5f10 7s2 [2] 2, 8, 18, 32, 28, 8, 2
Sifat fisika
Fase	solid
Massa jenis (mendekati suhu kamar)	15.1[1] g·cm−3
Titik lebur	1173 K, 900 [1] °C, 1652 °F
Titik didih	1743[3] K, 1470 °C, 2678 (estimation) °F
Sifat atom
Bilangan oksidasi	2, 3, 4 [4]
Elektronegativitas	1.3 [5] (skala Pauling)
Energi ionisasi	pertama: 608 [6] kJ·mol−1
Lain-lain
Susunan kristal	simple hexagonal
Kekerasan Mohs	3–4[7]
Nomor CAS	7440-71-3 [1]
Isotop paling stabil
Artikel utama: Isotop dari kalifornium
iso NA Waktu paruh DM DE (MeV) DP 248Cf syn 333.5 d α (100%) 6.369 244Cm SF (2.9×10−3%) 0.0029 – 249Cf syn 351 y α (100%) 6.295 245Cm SF (5.0×10−7%) 4.4×10−7 – 250Cf syn 13.08 y α (99.92%) 6.129 246Cm SF (0.08%) 0.077 – 251Cf syn 898 y α 6.172 247Cm 252Cf syn 2.645 y α (96.91%) 6.217 248Cm SF (3.09%) – – 253Cf syn 17.81 d β− (99.69%) 0.29 253Es α (0.31%) 6.126 249Cm 254Cf syn 60.5 d SF (99.69%) – – α (0.31%) 5.930 250Cm Isotope references: [8][9]
· r

Kalifornium (pengucapan: /ˌkælɪˈforniəm/) yaitu unsur kimia dalam sistem periodik unsur yang memiliki lambang Cf dan nomor atom 98.

Sumber acuan

Bacaan

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