Rutherfordium

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104 lawrenciumrutherfordiumdubnium
Hf

Rf

(Upq)
Rf-TableImage.png
Katrangan Umum Unsur
Jeneng, Lambang, Nomer atom rutherfordium, Rf, 104
Dhèrèt kimia logam transisi
Golongan, Période, Blok 4, 7, d
Massa atom [267] g/mol
Konfigurasi elektron [Rn] 5f14 6d2 7s2
Cacahing èlèktron saben kulit 2, 8, 18, 32, 32, 10, 2
Ciri-ciri fisik
Fase presumably a padhet
Massa jenis (watara suhu kamar) ora dimangertèni g/cm³
Ciri-ciri atom
Struktur kristal ora dimangertèni
Bilangan oksidasi 4
Energi ionisasi pertama: ora dimangertèni kJ/mol
Jari-jari atom (terhitung) ora dimangertèni pm
Jari-jari kovalen ora dimangertèni pm
Lain-lain
Nomor CAS 53850-36-5
Isotop
iso NA waktu paruh DM DE (MeV) DP
267Rf syn 1.3 h SF
263mRf syn ~15 m SF
α 7.90 ?
263gRf syn 8 s SF
262Rf syn 2.1 s SF
261mRf syn 1.1 m α 8.28 257No
261gRf syn 3.7 s 83% SF
17% α 8.52 257No
260Rf syn 20 ms SF
259Rf syn 3.1 s 93% α 8.87,8.77 255No
7% SF
258Rf syn 13 ms SF
257mRf syn 4.0 s α 9.02,8.97 253No
257gRf syn 3.5 s 89% α 8.90,8.78,8.52,8.28 253No
11% ε 257Lr
256Rf syn 6.2 ms 99.7% SF
0.3% α 8.79 252No
255Rf syn 1.8 s ~50% α 8.81,8.77,8.74,8.71 251No
~50% SF
254Rf syn 0.022 ms SF
253Rf syn 0.048 ms SF
Referensi

Rutherfordium (uniné /ˌrʌðɚˈfɔrdiəm/) kuwi sawijining unsur kimia jroning Tabel périodik kanthi simbul Rf lan nomer atom 104.

Sintesis isotop minangka produk turunan (decay)[sunting | sunting sumber]

Sisa/residu Evaporasi Isotop Rf kang katon
288115 268Rf (manawa EC saka 268Db)
291116 , 287114 , 283112 267Rf
282113 266Rf (EC of 266Db)
271Hs 263gRf
263Db 263mRf (EC of 263Db)
266Sg (possibly 266mSg) 262Rf (possibly 262mRf)
277112 , 273Ds , 269Hs , 265Sg 261mRf , 261Rf
271Ds , 267Hs , 263Sg 259Rf
269Ds , 265Hs , 261Sg 257Rf
264Hs , 260Sg 256Rf
259Sg 255Rf

Kronologi temon isotop[sunting | sunting sumber]

Isotop Taun ditemokaké reaksi
253Rf 1994 204Pb(50Ti,n) [1]
254Rf 1994 206Pb(50Ti,2n) [1]
255Rf 1974? 1985 207Pb(50Ti,2n)
256Rf 1974? 1985 208Pb(50Ti,2n)
257Rfg,m 1969 249Cf(12C,4n) [2]
258Rf 1969 249Cf(13C,4n) [2]
259Rf 1969 249Cf(13C,3n) [2]
260Rf 1969 248Cm(16O,4n)
261Rfm 1970 248Cm(18O,5n) [3]
261Rfg 1996 208Pb(70Zn,n) [4]
262Rf 1996 244Pu(22Ne,4n) [5]
263Rfm 1990? 248Cm(18O,3n)
263Rfg 2004 248Cm(26Mg,3n) [6]
264Rf unknown
265Rf unknown
266Rf 2006? 237Np(48Ca,3n) [7]
267Rf 2003/2004 238U(48Ca,3n) [4]
268Rf 2003? 243Am(48Ca,3n) [8]

Kasil kimia saka isotop[sunting | sunting sumber]

Fusi adhem[sunting | sunting sumber]

Proyektil Target CN 1n 2n 3n
50Ti 208Pb 258Rf 38.0 nb , 17.0 MeV 12.3 nb , 21.5 MeV 660 pb , 29.0 MeV
50Ti 207Pb 257Rf 4.8 nb
50Ti 206Pb 256Rf 800 pb , 21.5 MeV 2.4 nb , 21.5 MeV
50Ti 204Pb 254Rf 190 pb , 15.6 MeV
48Ti 208Pb 256Rf 380 pb , 17.0 MeV

Fusi panas[sunting | sunting sumber]

Proyektil Target CN 3n 4n 5n
26Mg 238U 264Rf 240 pb 1.1 nb
22Ne 244Pu 266Rf + 4.0 nb
18O 248Cm 266Rf + 13.0 nb

Rujukan[sunting | sunting sumber]

  1. ^ Kaluputan sitat (pangutipan) Tag <ref> ora absah; ora ditemokaké tèks kanggo ref mawa jeneng 97He01
  2. ^ Kaluputan sitat (pangutipan) Tag <ref> ora absah; ora ditemokaké tèks kanggo ref mawa jeneng 69Gh01
  3. ^ Kaluputan sitat (pangutipan) Tag <ref> ora absah; ora ditemokaké tèks kanggo ref mawa jeneng 70Gh01
  4. ^ a b see ununbium
  5. ^ Kaluputan sitat (pangutipan) Tag <ref> ora absah; ora ditemokaké tèks kanggo ref mawa jeneng 96La01
  6. ^ see hassium
  7. ^ see ununtrium
  8. ^ see ununpentium

Pranala njaba[sunting | sunting sumber]


Golongan → 1 2
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Période ↓
1 1
H

2
He
2 3
Li
4
Be


5
B
6
C
7
N
8
O
9
F
10
Ne
3 11
Na
12
Mg


13
Al
14
Si
15
P
16
S
17
Cl
18
Ar
4 19
K
20
Ca

21
Sc
22
Ti
23
V
24
Cr
25
Mn
26
Fe
27
Co
28
Ni
29
Cu
30
Zn
31
Ga
32
Ge
33
As
34
Se
35
Br
36
Kr
5 37
Rb
38
Sr

39
Y
40
Zr
41
Nb
42
Mo
43
Tc
44
Ru
45
Rh
46
Pd
47
Ag
48
Cd
49
In
50
Sn
51
Sb
52
Te
53
I
54
Xe
6 55
Cs
56
Ba
*
71
Lu
72
Hf
73
Ta
74
W
75
Re
76
Os
77
Ir
78
Pt
79
Au
80
Hg
81
Tl
82
Pb
83
Bi
84
Po
85
At
86
Rn
7 87
 Fr 
88
Ra
**
103
Lr
104
Rf
105
Db
106
Sg
107
Bh
108
Hs
109
Mt
110
Ds
111
Uuu
112
Uub
113
Uut
114
Uuq
115
Uup
116
Uuh
117
Uus
118
Uuo

* Lantanida 57
La
58
Ce
59
Pr
60
Nd
61
Pm
62
Sm
63
Eu
64
Gd
65
Tb
66
Dy
67
Ho
68
Er
69
Tm
70
Yb
** Aktinida 89
Ac
90
Th
91
Pa
92
U
93
Np
94
Pu
95
Am
96
Cm
97
Bk
98
Cf
99
Es
100
Fm
101
Md
102
No
Seri Kimia saka Tabel Périodik
Logam alkali Alkali tanah Lantanida Aktinida Logam transisi
Logam Metaloid Nonlogam Halogen Gas mulia
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