Dubnium

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105 rutherfordiumdubniumseaborgium
Ta

Db

(Upp)
Db-TableImage.png
Katrangan Umum Unsur
Jeneng, Lambang, Nomer atom dubnium, Db, 105
Dhèrèt kimia transition metals
Golongan, Période, Blok 5, 7, d
Panampilan unknown, probably silvery
white or metallic gray
Massa atom [268] g/mol
Konfigurasi elektron [Rn] 5f14 6d3 7s2
Cacahing èlèktron saben kulit 2, 8, 18, 32, 32, 11, 2
Ciri-ciri fisik
Fase presumably a solid
Massa jenis (watara suhu kamar) unknown g/cm³
Ciri-ciri atom
Struktur kristal unknown
Bilangan oksidasi 5
Jari-jari atom (terhitung) unknown pm
Jari-jari kovalen unknown pm
Lain-lain
Nomor CAS 53850-35-4
Isotop
iso NA waktu paruh DM DE (MeV) DP
268Db syn 29 h[rujukan?] SF
ε ? 268Rf
267Db syn 1.2 h SF
266Db syn 22 m ε 266Rf
263Db syn 27 s 56% SF
41% α 8.36 259Lr
3% ε 263mRf
262Db syn 34 s 67% α 8.66,8.45 258Lr
33% SF
261Db syn 1.8 s α 8.93 257Lr
260Db syn 1.5 s α 9.13,9.08,9.05 256Lr
259Db syn 0.5 s α 9.47 255Lr
258Db syn 4.4 s 67% α 9.17,9.08,9.01 254Lr
33% ε 258Rf
257mDb syn 0.76 s α 9.16 253Lr
257gDb syn 1.50 s α 9.07,8.97 253Lr
256Db syn 1.6 s 70% α 9.12,9.08,9.01,8.89 253Lr
30% ε 256Rf
Referensi

Dubnium (uniné /ˈduːbniəm/) kuwi sawijining unsur kimia jroning tabel périodik kanthi simbul Db lan nomer atom 105.

Referensi[sunting | sunting sumber]

Pranala njaba[sunting | sunting sumber]

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Wikimedia Commons gadhah galeri bab:


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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