prometium mungsuh strontium
Tabel périodik
Symbol
Pm
Sr
Panggil Group
ora Sumadhiya
2
16
Panggil periode
6
5
Block
pemblokiran f
s pemblokiran
Family unsur
lanthanide
alkalin bumi
CAS Number
7440122
99+
7440246
99+
Jeneng papan Group
ora Sumadhiya
Fm_ 3M
Space Group Number
ora Sumadhiya
225.00
2
facts
Facts Interesting
- metal Prometium ditemokaké ing pitchblende.
- Prometium logam logam Highly radioaktif.
- unsur strontium alus saka Calcium.
- Perak Strontium dadi kuning, yen kapapar online.
sumber
Found in Minerals, Mining
Found in Minerals, Mining, Ores saka Minerals
History
sing katutup
Chien Shiung Wu, Emilio Segrè, Hans Bethe
William Cruickshank
Discovery
ing taun 1942
ing 1787
turah mbrawah
Turah mbrawah Ing Universe
ora Sumadhiya
4 * 10-6 %
14
Turah mbrawah Ing Sun
~-9999 %
~0.000005 %
15
Turah mbrawah Ing meteorit
ora Sumadhiya
0.00 %
15
Turah mbrawah Ing bumi lemah ndhuwur
ora Sumadhiya
0.04 %
10
Turah mbrawah Ing Segara
ora Sumadhiya
0.00 %
4
Turah mbrawah Ing Manungsa
ora Sumadhiya
0.00 %
7
ulah
Ulah lan Wuku
- Kang digunakake kanggo riset waé. jumlah cilik saka logam digunakake ing batre atom.
- bosok radioaktif sawijining digunakake kanggo Phosphor kanggo menehi mati lampu. Lampu cemlorot diowahi dadi listrik.
Character length exceed error
Ulah Industrial
NA
Industry amunisi, Industri Kimia
Ulah Medical
NA
NA
Ulah liyane
NA
wesi
Properties biologi
keracunan
non Toxic
non Toxic
Saiki ing badan Human
Ora
Ya
Sang
0.00 Sang / mg dm-3
37
0.03 Sang / mg dm-3
19
ing Bone
ora Sumadhiya
140.00 ppm
7
fisik Properties
leleh Point
1,042.00 ° C
99+
769.00 ° C
99+
Boiling Point
3,000.00 ° C
31
1,384.00 ° C
99+
katon
State fisik
Solid
Solid
warna
Unknown
perak Putih
luster
metallic
metallic
atose
Mohs atose
ora Sumadhiya
1.50
18
Kacepetan swara
ora Sumadhiya
ora Sumadhiya
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
Pm
Sr
isotop
Isotop dikenal
27
12
27
12
keelektronegatifan
Pauling Elektronegativitas
ora Sumadhiya
0.95
99+
Sanderson Elektronegativitas
ora Sumadhiya
0.72
27
Allred Rochow Elektronegativitas
1.07
32
0.99
37
Mulliken-Jaffe Elektronegativitas
ora Sumadhiya
1.00
18
Allen Elektronegativitas
ora Sumadhiya
0.96
40
Electropositivity
Pauling Electropositivity
ora Sumadhiya
3.05
7
tenogo ionisasi
Level Energy 1st
540.00 kJ / mol
99+
549.50 kJ / mol
99+
Level Energy 2
1,050.00 kJ / mol
99+
1,064.20 kJ / mol
99+
Level Energy 3rd
2,150.00 kJ / mol
99+
4,138.00 kJ / mol
10
Level Energy 4
3,970.00 kJ / mol
38
5,500.00 kJ / mol
13
Level Energy 5th
ora Sumadhiya
6,910.00 kJ / mol
18
Level Energy 6th
ora Sumadhiya
8,760.00 kJ / mol
18
tingkat Energy 7
ora Sumadhiya
10,230.00 kJ / mol
19
Level Energy 8
ora Sumadhiya
11,800.00 kJ / mol
19
Level Energy 9
ora Sumadhiya
15,600.00 kJ / mol
17
Level Energy 10th
ora Sumadhiya
17,100.00 kJ / mol
19
Level Energy 11
ora Sumadhiya
31,270.00 kJ / mol
6
padha karo elektrokimia
1.80 g / amp-day
36
1.64 g / amp-day
99+
Fungsi Work elektron
ora Sumadhiya
2.59 eV
99+
Properties Kimia liyane
ionisasi, Isotop radioaktif, kelarutan
ionisasi, Isotop radioaktif, Radioaktif, kelarutan
atom Properties
Panggil atom
61
99+
38
99+
Konfigurasi elektron
[Xe] 4F 5 6s 2
[Kr] 5S 2
Struktur Crystal
Double Hexagonal Tutup dikempalken (DHCP)
Face tengah kubik (FCC)
Crystal pola
DHCP-Crystal-Structure-of-Promethium.jpg#100
FCC-Crystal-Structure-of-Strontium.jpg#100
atom
Jumlah proton
61
99+
38
99+
Jumlah Neutron
84
40
50
99+
Jumlah Èlèktron
61
99+
38
99+
Radius saka Atom
Radius atom
183.00 pm
10
215.00 pm
5
kovalen Radius
199.00 pm
12
195.00 pm
15
Van der Waals Radius
236.00 pm
16
249.00 pm
7
Bobot atom
145.00 Amu
99+
87.62 Amu
99+
Volume atom
22.39 cm3 / mol
12
33.70 cm3 / mol
6
Nomer atom jejer
Potensi Valence Electron
44.10 (-eV)
39
25.70 (-eV)
99+
Constant pola
ora Sumadhiya
608.49 pm
6
pola Angles
Unknown
π/2, π/2, π/2
Pola C / A rasio
ora Sumadhiya
ora Sumadhiya
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
7.26 g / cm 3
99+
2.64 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
ora Sumadhiya
2.38 g / cm3
99+
Strength tensile
ora Sumadhiya
ora Sumadhiya
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 1000 K
ora Sumadhiya
121.00 (Pa)
1
situs kelenturan
nyukur pengaturan
18.00 GPA
36
6.03 GPA
99+
pengaturan akeh
33.00 GPA
36
ora Sumadhiya
Young kang pengaturan
46.00 GPA
38
15.70 GPA
99+
Poisson rasio
0.28
17
0.28
17
Properties Teknik liyane
NA
NA
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
7.26
99+
2.64
99+
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
NA
resistivity
0.75 nΩ · m
99+
132.00 nΩ · m
24
konduktivitas listrik
ora Sumadhiya
0.08 10 6 / cm Ω
26
elektron Affinity
50.00 kJ / mol
21
5.03 kJ / mol
38
termal Properties
Kalor tartamtu
0.18 J / (kg K)
33
0.30 J / (kg K)
18
Graham Kapasitas kalor
ora Sumadhiya
26.40 J / mol · K
28
doyo termal
17.90 W / m · K
99+
35.40 W / m · K
37
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
9.00 μm / (m · K)
99+
22.50 μm / (m · K)
18
enthalpy
Enthalpy panguapan
ora Sumadhiya
150.00 kJ / mol
99+
Enthalpy saka Fusion
7.50 kJ / mol
99+
9.16 kJ / mol
38
Enthalpy saka atomization
310.00 kJ / mol
34
163.20 kJ / mol
99+
Standard molar Entropy
ora Sumadhiya
55.00 J / mol.K
26
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