prometium mungsuh technetium
Tabel périodik
Symbol
Pm
Tc
Panggil Group
ora Sumadhiya
7
11
Panggil periode
6
5
Block
pemblokiran f
d block
Family unsur
lanthanide
transisi Metal
CAS Number
7440122
99+
7440268
99+
Jeneng papan Group
ora Sumadhiya
P63 / mmc
Space Group Number
ora Sumadhiya
194.00
5
facts
Facts Interesting
- metal Prometium ditemokaké ing pitchblende.
- Prometium logam logam Highly radioaktif.
- jeneng asli Technetium ana masurium.
- Ing wektu nemokaké iku ditemokaké ing sampel Molybdenum.
sumber
Found in Minerals, Mining
Digawe dening némbakaké Molybdenum karo deuterons
History
sing katutup
Chien Shiung Wu, Emilio Segrè, Hans Bethe
Emilio Segrè and Carlo Perriero
Discovery
ing taun 1942
ing taun 1937
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.
- Technetium punika logam radioaktif lan Empu iku digunakake kanggo pasinaon medical lan risèt liyane.
Ulah Industrial
NA
NA
Ulah Medical
NA
NA
Ulah liyane
NA
wesi, Nuclear Riset, tujuan Research
Properties biologi
keracunan
non Toxic
Low 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+
2,200.00 ° C
9
Boiling Point
3,000.00 ° C
31
4,877.00 ° C
7
katon
State fisik
Solid
Solid
warna
Unknown
Shiny Gray
luster
metallic
NA
atose
Kacepetan swara
ora Sumadhiya
16,200.00 m / s
1
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
Tc
isotop
Isotop dikenal
27
12
18
21
keelektronegatifan
Pauling Elektronegativitas
ora Sumadhiya
1.90
11
Allred Rochow Elektronegativitas
1.07
32
1.36
20
Allen Elektronegativitas
ora Sumadhiya
1.51
28
Electropositivity
Pauling Electropositivity
ora Sumadhiya
2.10
99+
tenogo ionisasi
Level Energy 1st
540.00 kJ / mol
99+
702.00 kJ / mol
36
Level Energy 2
1,050.00 kJ / mol
99+
1,470.00 kJ / mol
99+
Level Energy 3rd
2,150.00 kJ / mol
99+
2,850.00 kJ / mol
33
Level Energy 4
3,970.00 kJ / mol
38
ora Sumadhiya
padha karo elektrokimia
1.80 g / amp-day
36
0.52 g / amp-day
99+
Fungsi Work elektron
ora Sumadhiya
ora Sumadhiya
Properties Kimia liyane
ionisasi, Isotop radioaktif, kelarutan
anti Corrosion, ionisasi, Isotop radioaktif, Radioaktif, kelarutan
atom Properties
Panggil atom
61
99+
43
99+
Konfigurasi elektron
[Xe] 4F 5 6s 2
[Kr] 4d 5 5S 2
Struktur Crystal
Double Hexagonal Tutup dikempalken (DHCP)
Hexagonal Tutup dikempalken (HCP)
Crystal pola
DHCP-Crystal-Structure-of-Promethium.jpg#100
HCP-Crystal-Structure-of-Technetium.jpg#100
atom
Jumlah proton
61
99+
43
99+
Jumlah Neutron
84
40
55
99+
Jumlah Èlèktron
61
99+
43
99+
Radius saka Atom
Radius atom
183.00 pm
10
136.00 pm
99+
kovalen Radius
199.00 pm
12
147.00 pm
37
Van der Waals Radius
236.00 pm
16
200.00 pm
28
Bobot atom
145.00 Amu
99+
98.00 Amu
99+
Volume atom
22.39 cm3 / mol
12
8.50 cm3 / mol
99+
Nomer atom jejer
Potensi Valence Electron
44.10 (-eV)
39
180.00 (-eV)
3
Constant pola
ora Sumadhiya
273.50 pm
99+
pola Angles
Unknown
π/2, π/2, 2 π/3
Pola C / A rasio
ora Sumadhiya
1.60
5
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
7.26 g / cm 3
99+
11.00 g / cm 3
34
Strength tensile
ora Sumadhiya
ora Sumadhiya
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
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
NA
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
7.26
99+
11.50
24
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
Arman
resistivity
0.75 nΩ · m
99+
200.00 nΩ · m
18
konduktivitas listrik
ora Sumadhiya
0.07 10 6 / cm Ω
30
elektron Affinity
50.00 kJ / mol
21
53.00 kJ / mol
18
termal Properties
Kalor tartamtu
0.18 J / (kg K)
33
0.21 J / (kg K)
29
Graham Kapasitas kalor
ora Sumadhiya
24.27 J / mol · K
99+
doyo termal
17.90 W / m · K
99+
50.60 W / m · K
30
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
9.00 μm / (m · K)
99+
7.10 μm / (m · K)
99+
enthalpy
Enthalpy panguapan
ora Sumadhiya
660.00 kJ / mol
6
Enthalpy saka Fusion
7.50 kJ / mol
99+
23.01 kJ / mol
9
Enthalpy saka atomization
310.00 kJ / mol
34
649.00 kJ / mol
8
Standard molar Entropy
ora Sumadhiya
181.10 J / mol.K
2
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