prometium mungsuh neptunium
Tabel périodik
Symbol
Pm
Np
Panggil Group
ora Sumadhiya
ora Sumadhiya
Panggil periode
6
7
Block
pemblokiran f
pemblokiran f
Family unsur
lanthanide
actinide
CAS Number
7440122
99+
7439998
99+
Jeneng papan Group
ora Sumadhiya
Pnma
Space Group Number
ora Sumadhiya
62.00
11
facts
Facts Interesting
- metal Prometium ditemokaké ing pitchblende.
- Prometium logam logam Highly radioaktif.
ora Cepak
sumber
Found in Minerals, Mining
Digawe dening némbakaké Uranium karo Neutron, Ores logam
History
sing katutup
Chien Shiung Wu, Emilio Segrè, Hans Bethe
Edwin McMillan and Philip H. Abelson
Discovery
ing taun 1942
ing taun 1940
turah mbrawah
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.
- Efesus saiki dikenal saka logam Neptunium sing winates kanggo riset waé mung.
- Neptunium kang isotop neptunium-237 digunakake minangka neutron detektor.
Ulah Industrial
NA
NA
Ulah Medical
NA
NA
Ulah liyane
NA
wesi, Nuclear Riset, tujuan Research
Properties biologi
keracunan
non Toxic
Toxic
Saiki ing badan Human
Ora
Ora
Sang
0.00 Sang / mg dm-3
37
0.00 Sang / mg dm-3
37
ing Bone
ora Sumadhiya
0.00 ppm
36
fisik Properties
leleh Point
1,042.00 ° C
99+
640.00 ° C
99+
Boiling Point
3,000.00 ° C
31
3,902.00 ° C
13
katon
State fisik
Solid
Solid
warna
Unknown
Silver
luster
metallic
metallic
atose
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
Np
isotop
Isotop dikenal
27
12
20
19
keelektronegatifan
Pauling Elektronegativitas
ora Sumadhiya
1.36
29
Allred Rochow Elektronegativitas
1.07
32
1.22
26
Electropositivity
Pauling Electropositivity
ora Sumadhiya
2.64
25
tenogo ionisasi
Level Energy 1st
540.00 kJ / mol
99+
604.50 kJ / mol
99+
Level Energy 2
1,050.00 kJ / mol
99+
1,128.00 kJ / mol
99+
Level Energy 3rd
2,150.00 kJ / mol
99+
1,997.00 kJ / mol
99+
Level Energy 4
3,970.00 kJ / mol
38
3,242.00 kJ / mol
99+
padha karo elektrokimia
1.80 g / amp-day
36
1.77 g / amp-day
39
Fungsi Work elektron
ora Sumadhiya
ora Sumadhiya
Properties Kimia liyane
ionisasi, Isotop radioaktif, kelarutan
ionisasi, Isotop radioaktif, Radioaktif, kelarutan
atom Properties
Panggil atom
61
99+
93
25
Konfigurasi elektron
[Xe] 4F 5 6s 2
[Rn] 5F 4 6D 1 7s 2
Struktur Crystal
Double Hexagonal Tutup dikempalken (DHCP)
Orthorhombic (Orth)
Crystal pola
DHCP-Crystal-Structure-of-Promethium.jpg#100
ORTH-Crystal-Structure-of-Neptunium.jpg#100
atom
Jumlah proton
61
99+
93
25
Jumlah Neutron
84
40
144
14
Jumlah Èlèktron
61
99+
93
25
Radius saka Atom
Radius atom
183.00 pm
10
155.00 pm
30
kovalen Radius
199.00 pm
12
190.00 pm
18
Van der Waals Radius
236.00 pm
16
221.00 pm
22
Bobot atom
145.00 Amu
99+
237.00 Amu
22
Volume atom
22.39 cm3 / mol
12
11.62 cm3 / mol
99+
Nomer atom jejer
Potensi Valence Electron
44.10 (-eV)
39
96.00 (-eV)
9
Constant pola
ora Sumadhiya
666.30 pm
3
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+
19.38 g / cm 3
14
Strength tensile
ora Sumadhiya
125.00 MPa
14
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 2000 K
ora Sumadhiya
0.11 (Pa)
17
situs kelenturan
nyukur pengaturan
18.00 GPA
36
ora Sumadhiya
pengaturan akeh
33.00 GPA
36
ora Sumadhiya
Young kang pengaturan
46.00 GPA
38
ora Sumadhiya
Poisson rasio
0.28
17
ora Sumadhiya
Properties Teknik liyane
NA
ductile
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
7.26
99+
20.25
6
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
Arman
resistivity
0.75 nΩ · m
99+
1.22 nΩ · m
99+
konduktivitas listrik
ora Sumadhiya
0.01 10 6 / cm Ω
99+
elektron Affinity
50.00 kJ / mol
21
ora Sumadhiya
termal Properties
Kalor tartamtu
0.18 J / (kg K)
33
0.12 J / (kg K)
40
Graham Kapasitas kalor
ora Sumadhiya
29.46 J / mol · K
8
doyo termal
17.90 W / m · K
99+
6.30 W / m · K
99+
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
9.00 μm / (m · K)
99+
ora Sumadhiya
enthalpy
Enthalpy saka Fusion
7.50 kJ / mol
99+
3.20 kJ / mol
99+
Enthalpy saka atomization
310.00 kJ / mol
34
ora Sumadhiya
Standard molar Entropy
ora Sumadhiya
ora Sumadhiya
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