strontium mungsuh Holmium
Tabel périodik
Symbol
Sr
Ho
Panggil Group
2
16
ora Sumadhiya
Panggil periode
5
6
Block
s pemblokiran
pemblokiran f
Family unsur
alkalin bumi
lanthanide
CAS Number
7440246
99+
7440600
29
Jeneng papan Group
Fm_ 3M
P63 / mmc
Space Group Number
225.00
2
194.00
5
facts
Facts Interesting
- unsur strontium alus saka Calcium.
- Perak Strontium dadi kuning, yen kapapar online.
- metal Holmium sanget alus lan malleable.
- metal Holmium uga dikenal kanggo resistivity sawijining karat.
sumber
Found in Minerals, Mining, Ores saka Minerals
Found in Minerals, Mining, Ores saka Minerals
History
sing katutup
William Cruickshank
Marc Delafontaine
Discovery
ing 1787
ing taun 1878
turah mbrawah
Turah mbrawah Ing Universe
4 * 10-6 %
14
5 * 10-8 %
27
Turah mbrawah Ing Sun
~0.000005 %
15
~-9999 %
Turah mbrawah Ing meteorit
0.00 %
15
0.00 %
99+
Turah mbrawah Ing bumi lemah ndhuwur
0.04 %
10
0.00 %
38
Turah mbrawah Ing Segara
0.00 %
4
0.00 %
99+
Turah mbrawah Ing Manungsa
0.00 %
7
ora Sumadhiya
ulah
Ulah lan Wuku
Character length exceed error
- metal Holmium duwe kemampuan kanggo nresep neutron, supaya logam iki digunakake ing reaktor nuklir kanggo njaga reaksi berantai saka unsur ing kontrol.
- Wesi saka Holmium digunakake kanggo gawé Magnet.
Ulah Industrial
Industry amunisi, Industri Kimia
NA
Ulah Medical
NA
NA
Ulah liyane
wesi
wesi, Nuclear Riset
Properties biologi
keracunan
non Toxic
Low Toxic
Saiki ing badan Human
Ya
Ora
Sang
0.03 Sang / mg dm-3
19
ora Sumadhiya
ing Bone
140.00 ppm
7
ora Sumadhiya
fisik Properties
leleh Point
769.00 ° C
99+
1,461.00 ° C
30
Boiling Point
1,384.00 ° C
99+
2,600.00 ° C
99+
katon
State fisik
Solid
Solid
warna
perak Putih
perak Putih
luster
metallic
metallic
atose
Mohs atose
1.50
18
ora Sumadhiya
Brinell atose
ora Sumadhiya
746.00 MPa
13
Vickers atose
ora Sumadhiya
481.00 MPa
23
Kacepetan swara
ora Sumadhiya
2,760.00 m / s
30
Properties Optical
allotropes
Ora
Ora
α allotropes
ora Sumadhiya
ora Sumadhiya
β allotropes
ora Sumadhiya
ora Sumadhiya
γ allotropes
ora Sumadhiya
ora Sumadhiya
Kimia Properties
Formula Kimia
Sr
Ho
isotop
Isotop dikenal
27
12
34
5
keelektronegatifan
Pauling Elektronegativitas
0.95
99+
1.23
37
Sanderson Elektronegativitas
0.72
27
ora Sumadhiya
Allred Rochow Elektronegativitas
0.99
37
1.10
30
Mulliken-Jaffe Elektronegativitas
1.00
18
ora Sumadhiya
Allen Elektronegativitas
0.96
40
ora Sumadhiya
Electropositivity
Pauling Electropositivity
3.05
7
2.77
17
tenogo ionisasi
Level Energy 1st
549.50 kJ / mol
99+
581.00 kJ / mol
99+
Level Energy 2
1,064.20 kJ / mol
99+
1,140.00 kJ / mol
99+
Level Energy 3rd
4,138.00 kJ / mol
10
2,204.00 kJ / mol
99+
Level Energy 4
5,500.00 kJ / mol
13
4,100.00 kJ / mol
34
Level Energy 5th
6,910.00 kJ / mol
18
ora Sumadhiya
Level Energy 6th
8,760.00 kJ / mol
18
ora Sumadhiya
tingkat Energy 7
10,230.00 kJ / mol
19
ora Sumadhiya
Level Energy 8
11,800.00 kJ / mol
19
ora Sumadhiya
Level Energy 9
15,600.00 kJ / mol
17
ora Sumadhiya
Level Energy 10th
17,100.00 kJ / mol
19
ora Sumadhiya
Level Energy 11
31,270.00 kJ / mol
6
ora Sumadhiya
padha karo elektrokimia
1.64 g / amp-day
99+
2.02 g / amp-day
29
Fungsi Work elektron
2.59 eV
99+
ora Sumadhiya
Properties Kimia liyane
ionisasi, Isotop radioaktif, Radioaktif, kelarutan
Kimia Stabilitas, anti Corrosion, ionisasi, Isotop radioaktif, kelarutan
atom Properties
Panggil atom
38
99+
67
99+
Konfigurasi elektron
[Kr] 5S 2
[Xe] 4F 11 6s 2
Struktur Crystal
Face tengah kubik (FCC)
Hexagonal Tutup dikempalken (HCP)
Crystal pola
FCC-Crystal-Structure-of-Strontium.jpg#100
HCP-Crystal-Structure-of-Holmium.jpg#100
atom
Jumlah proton
38
99+
67
99+
Jumlah Neutron
50
99+
98
34
Jumlah Èlèktron
38
99+
67
99+
Radius saka Atom
Radius atom
215.00 pm
5
176.00 pm
18
kovalen Radius
195.00 pm
15
192.00 pm
17
Van der Waals Radius
249.00 pm
7
216.00 pm
24
Bobot atom
87.62 Amu
99+
164.93 Amu
99+
Volume atom
33.70 cm3 / mol
6
18.70 cm3 / mol
24
Nomer atom jejer
Potensi Valence Electron
25.70 (-eV)
99+
47.90 (-eV)
31
Constant pola
608.49 pm
6
357.73 pm
38
pola Angles
π/2, π/2, π/2
π/2, π/2, 2 π/3
Pola C / A rasio
ora Sumadhiya
1.57
17
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
2.64 g / cm 3
99+
8.79 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
2.38 g / cm3
99+
8.34 g / cm3
26
Strength tensile
ora Sumadhiya
ora Sumadhiya
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 1000 K
121.00 (Pa)
1
0.00 (Pa)
16
situs kelenturan
nyukur pengaturan
6.03 GPA
99+
26.30 GPA
28
pengaturan akeh
ora Sumadhiya
40.20 GPA
32
Young kang pengaturan
15.70 GPA
99+
64.80 GPA
31
Poisson rasio
0.28
17
0.23
29
Properties Teknik liyane
NA
ductile, malleable, Sectile
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
2.64
99+
8.80
35
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
NA
Arman
resistivity
132.00 nΩ · m
24
814.00 nΩ · m
4
konduktivitas listrik
0.08 10 6 / cm Ω
26
0.01 10 6 / cm Ω
99+
elektron Affinity
5.03 kJ / mol
38
50.00 kJ / mol
21
termal Properties
Kalor tartamtu
0.30 J / (kg K)
18
0.16 J / (kg K)
35
Graham Kapasitas kalor
26.40 J / mol · K
28
27.15 J / mol · K
19
doyo termal
35.40 W / m · K
37
16.20 W / m · K
99+
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
22.50 μm / (m · K)
18
11.20 μm / (m · K)
35
enthalpy
Enthalpy panguapan
150.00 kJ / mol
99+
241.00 kJ / mol
38
Enthalpy saka Fusion
9.16 kJ / mol
38
11.76 kJ / mol
29
Enthalpy saka atomization
163.20 kJ / mol
99+
301.00 kJ / mol
36
Standard molar Entropy
55.00 J / mol.K
26
75.30 J / mol.K
8
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