neptunium mungsuh americium
Tabel périodik
Symbol
Np
Am
Panggil Group
ora Sumadhiya
ora Sumadhiya
Panggil periode
7
7
Block
pemblokiran f
pemblokiran f
Family unsur
actinide
actinide
CAS Number
7439998
99+
7440359
99+
Jeneng papan Group
Pnma
P63 / mmc
Space Group Number
62.00
11
194.00
5
facts
Facts Interesting
ora Cepak
- metal Americium diprodhuksi dening némbakaké Plutonium karo Neutron.
- metal Americium ditemokaké minangka dening-produk nalika Testing bom atom (Manhattan Project).
sumber
Digawe dening némbakaké Uranium karo Neutron, Ores logam
Dijupuk dening bombarding plutonium karo Neutron
History
sing katutup
Edwin McMillan and Philip H. Abelson
Glenn T. Seaborg, Ralph A. James, Leon O. Morgan, Albert Ghiorso
Discovery
ing taun 1940
ing 1944
turah mbrawah
ulah
Ulah lan Wuku
- Efesus saiki dikenal saka logam Neptunium sing winates kanggo riset waé mung.
- Neptunium kang isotop neptunium-237 digunakake minangka neutron detektor.
- metal Americium digunakake ing weker deteksi kumelun.
- Ing mangsa, logam gadhah potensi digunakake ing batre spacecrafts.
Ulah Industrial
NA
NA
Ulah Medical
NA
NA
Ulah liyane
wesi, Nuclear Riset, tujuan Research
wesi, Nuclear Riset, tujuan Research
Properties biologi
keracunan
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
0.00 ppm
36
0.00 ppm
36
fisik Properties
leleh Point
640.00 ° C
99+
994.00 ° C
99+
Boiling Point
3,902.00 ° C
13
2,607.00 ° C
99+
katon
State fisik
Solid
Solid
warna
Silver
perak Putih
luster
metallic
NA
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
Np
Am
isotop
Isotop dikenal
20
19
16
23
keelektronegatifan
Pauling Elektronegativitas
1.36
29
1.30
32
Allred Rochow Elektronegativitas
1.22
26
1.20
27
Electropositivity
Pauling Electropositivity
2.64
25
2.70
22
tenogo ionisasi
Level Energy 1st
604.50 kJ / mol
99+
578.00 kJ / mol
99+
Level Energy 2
1,128.00 kJ / mol
99+
1,158.00 kJ / mol
99+
Level Energy 3rd
1,997.00 kJ / mol
99+
2,132.00 kJ / mol
99+
Level Energy 4
3,242.00 kJ / mol
99+
3,493.00 kJ / mol
99+
padha karo elektrokimia
1.77 g / amp-day
39
3.02 g / amp-day
17
Fungsi Work elektron
ora Sumadhiya
ora Sumadhiya
Properties Kimia liyane
ionisasi, Isotop radioaktif, Radioaktif, kelarutan
ionisasi, Isotop radioaktif, Radioaktif, kelarutan
atom Properties
Panggil atom
93
25
95
23
Konfigurasi elektron
[Rn] 5F 4 6D 1 7s 2
[Rn] 5F 7 7s 2
Struktur Crystal
Orthorhombic (Orth)
Double Hexagonal Tutup dikempalken (DHCP)
Crystal pola
ORTH-Crystal-Structure-of-Neptunium.jpg#100
DHCP-Crystal-Structure-of-Americium.jpg#100
atom
Jumlah proton
93
25
95
23
Jumlah Neutron
144
14
148
12
Jumlah Èlèktron
93
25
95
23
Radius saka Atom
Radius atom
155.00 pm
30
173.00 pm
21
kovalen Radius
190.00 pm
18
180.00 pm
21
Van der Waals Radius
221.00 pm
22
244.00 pm
10
Bobot atom
237.00 Amu
22
243.00 Amu
20
Volume atom
11.62 cm3 / mol
99+
17.86 cm3 / mol
29
Nomer atom jejer
Potensi Valence Electron
96.00 (-eV)
9
44.00 (-eV)
40
Constant pola
666.30 pm
3
346.81 pm
99+
pola Angles
π/2, π/2, π/2
π/2, π/2, 2 π/3
Pola C / A rasio
ora Sumadhiya
ora Sumadhiya
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
19.38 g / cm 3
14
12.00 g / cm 3
30
Strength tensile
125.00 MPa
14
ora Sumadhiya
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 1000 K
ora Sumadhiya
0.00 (Pa)
13
Meksa beluk ing 2000 K
0.11 (Pa)
17
ora Sumadhiya
situs kelenturan
Poisson rasio
ora Sumadhiya
ora Sumadhiya
Properties Teknik liyane
ductile
NA
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
20.25
6
13.67
15
Nindakake Magnetic
paramagnetic
paramagnetic
Properties Listrik
Property Listrik
Arman
Unknown
resistivity
1.22 nΩ · m
99+
0.69 nΩ · m
99+
konduktivitas listrik
0.01 10 6 / cm Ω
99+
0.02 10 6 / cm Ω
99+
termal Properties
Kalor tartamtu
0.12 J / (kg K)
40
0.11 J / (kg K)
99+
Graham Kapasitas kalor
29.46 J / mol · K
8
62.70 J / mol · K
1
doyo termal
6.30 W / m · K
99+
10.00 W / m · K
99+
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
ora Sumadhiya
ora Sumadhiya
enthalpy
Enthalpy saka Fusion
3.20 kJ / mol
99+
14.39 kJ / mol
24
Enthalpy saka atomization
ora Sumadhiya
268.00 kJ / mol
40
Standard molar Entropy
ora Sumadhiya
ora Sumadhiya
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