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Europium

Saka Wikipédia Jawa, bauwarna mardika basa Jawa
63 samariumeuropiumgadolinium
-

Eu

Am
Katrangan Umum Unsur
Jeneng, Lambang, Nomer atom europium, Eu, 63
Dhèrèt kimia lantanida
Golongan, Periode, Blok n/a, 6, f
Panampilan silvery white
Massa atom 151.964(1) g/mol
Konfigurasi elektron [Xe] 4f7 6s2
Cacahing èlèktron saben kulit 2, 8, 18, 25, 8, 2
Ciri-ciri fisik
Fase solid
Massa jenis (watara suhu kamar) 5.264 g/cm³
Massa jenis cair ing titik lebur 5.13 g/cm³
Titik lebur 1099 K
(826 °C, 1519 °F)
Titik umob 1802 K
(1529 °C, 2784 °F)
Kalor peleburan 9.21 kJ/mol
Kalor panguapan 176 kJ/mol
Kapasitas kalor (25 °C) 27.66 J/(mol·K)
Tekanan uap
P/Pa 1 10 100 1 k 10 k 100 k
ing T/K 863 957 1072 1234 1452 1796
Ciri-ciri atom
Struktur kristal simple cubic (body centered)
Bilangan oksidasi 3,2
(mildly basic oxide)
Elektronegativitas ? 1.2 (skala Pauling)
Energi ionisasi
(detil)
ke-1: 547.1 kJ/mol
ke-2: 1085 kJ/mol
ke-3: 2404 kJ/mol
Jari-jari atom 185 pm
Jari-jari atom (terhitung) 231 pm
Lain-lain
Sifat magnetik no data
Resistivitas elektris (r.t.) (poly) 0.900 µΩ·m
Konduktivitas termal (300 K) est. 13.9 W/(m·K)
Muai panas (r.t.) (poly)
35.0 µm/(m·K)
Modulus Young 18.2 GPa
Modulus rigiditas 7.9 GPa
Modulus ruah 8.3 GPa
Nisbah Poisson 0.152
Kakerasan Vickers 167 MPa
Nomor CAS 7440-53-1
Isotop
iso NA waktu paruh DM DE (MeV) DP
150Eu syn 36.9 y ε 2.261 150Sm
151Eu 47.8% Eu stabil kanthi 88 neutron
152Eu syn 13.516 y ε 1.874 152Sm
β- 1.819 152Gd
153Eu 52.2% Eu stabil kanthi 90 neutron
Referensi

Europium iku unsur kimia sajeroning tabel périodik kang duwé lambang Sm lan nomer atom 63.

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
Rg
112
Cn
113
Nh
114
Fl
115
Mc
116
Lv
117
Ts
118
Og

* 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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