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praseodim
praseodim

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Comparați praseodim și holmium

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1 Tabelul periodic
1.1 Simbol
Pr
Ho
1.2 Număr grup
Tennessine elem..
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
gadoliniu element
ADD ⊕
1.5 perioada Număr
Uraniu element
6
Rank: 2 (Overall)
6
Rank: 2 (Overall)
litiu element
ADD ⊕
1.9 bloc
f block
f block
1.10 Element de familie
lantanidelor
lantanidelor
1.11 Numărul CAS
roentgeniu elem..
7440100
Rank: 69 (Overall)
7440600
Rank: 29 (Overall)
Aluminiu element
2.2 Nume grup spațiu
P63 / mmc
P63 / mmc
2.3 Număr spațiu grup
Sodiu element
194,00
Rank: 5 (Overall)
194,00
Rank: 5 (Overall)
Plutoniu element
ADD ⊕
3 Fapte
3.1 Fapte interesante
  • Praseodim de metal este produs sintetic din metal.
  • Praseodim este utilizat drept combustibil posibil pentru generatoarele radioactive.
  • de metal Holmium este foarte moale si maleabil.
  • de metal Holmium este bine cunoscut pentru rezistivitatea la coroziune.
3.2 surse
S-au găsit în minerale, Minerit, Minereurile de minerale
S-au găsit în minerale, Minerit, Minereurile de minerale
3.3 Istorie
3.3.1 care a descoperit
Not Available
Marc Delafontaine
3.3.2 Descoperire
în 1885
în 1878
3.4 Abundenţă
3.4.1 Abundenței În Universul
Fier element
2 * 10-7 %
Rank: 22 (Overall)
5 * 10-8 %
Rank: 27 (Overall)
taliu element
3.5.1 Abundenței În Soare
Fier element
~0.0000001 %
Rank: 26 (Overall)
~-9999 %
Rank: N/A (Overall)
beriliului element
ADD ⊕
3.7.2 Abundenței În Meteoriți
Fier element
0,00 %
Rank: 40 (Overall)
0,00 %
Rank: 43 (Overall)
Aur element
ADD ⊕
3.7.4 Abundenței în scoarța Pământului
Aluminiu element
0,00 %
Rank: 27 (Overall)
0,00 %
Rank: 38 (Overall)
Radiu element
ADD ⊕
3.8.3 Abundenței în oceanele
Sodiu element
0,00 %
Rank: 39 (Overall)
0,00 %
Rank: 41 (Overall)
protactiniu element
3.8.5 Abundenței la om
Calciu element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
Radiu element
ADD ⊕
4 utilizări
4.1 Utilizări și beneficii
Character length exceed error
Character length exceed error
4.1.1 Utilizări industriale
Industria chimica
N / A
4.1.2 Utilizări medicale
N / A
N / A
4.1.3 alte utilizări
Aliaje
Aliaje, Cercetarea nucleară
4.2 Proprietățile biologice
4.2.1 Toxicitate
moderat Toxic
Toxic scăzut
4.2.2 Prezent în corpul uman
Nu
Nu
4.2.3 in Blood
Sodiu element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
Plutoniu element
ADD ⊕
5.1.2 in Bone
Calciu element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
Plutoniu element
ADD ⊕
6 Fizic
6.1 Punct de topire
Tungsten element
935,00 ° C
Rank: 48 (Overall)
1.461,00 ° C
Rank: 30 (Overall)
franciu element
ADD ⊕
6.3 Punct de fierbere
Tungsten element
3.130,00 ° C
Rank: 27 (Overall)
2.600,00 ° C
Rank: 42 (Overall)
Fleroviu element
ADD ⊕
6.4 Aspect
6.4.1 Stare fizică
Solid
Solid
6.4.2 Culoare
grayish alb
silvery alb
6.4.3 Luciu
Metalic
Metalic
6.5 Duritate
6.5.1 Mohs Duritate
Crom element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
cesiu element
ADD ⊕
6.5.3 Duritatea Brinell
Osmiu element
481,00 MPa
Rank: 24 (Overall)
746,00 MPa
Rank: 13 (Overall)
cesiu element
ADD ⊕
7.1.1 Duritatea Vickers
Tungsten element
400,00 MPa
Rank: 25 (Overall)
481,00 MPa
Rank: 23 (Overall)
Paladiu element
ADD ⊕
7.4 Viteza sunetului
tehnețiu element
2.280,00 Domnișoară
Rank: 40 (Overall)
2.760,00 Domnișoară
Rank: 30 (Overall)
taliu element
ADD ⊕
7.6 Proprietăți optice
7.6.1 Indicele de refractie
Paladiu element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
Mercur element
7.7.1 reflexiei
Argint element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
molibdenul element
ADD ⊕
7.8 forme alotropice
Nu
Nu
7.8.1 alfa forme alotropice
Nu e disponibil
Nu e disponibil
7.8.2 p forme alotropice
Nu e disponibil
Nu e disponibil
7.8.3 y forme alotropice
Nu e disponibil
Nu e disponibil
8 Chimic
8.1 Formula chimica
Pr
Ho
8.2 izotopii
8.2.1 Izotopi cunoscute
Paladiu element
31
Rank: 8 (Overall)
34
Rank: 5 (Overall)
Tennessine element
ADD ⊕
8.4 Electronegativitate
8.4.1 Pauling Electronegativitate
Aur element
1,13
Rank: 42 (Overall)
1,23
Rank: 37 (Overall)
franciu element
ADD ⊕
8.4.4 Sanderson Electronegativitate
Cobalt element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
cesiu element
ADD ⊕
8.5.1 Allred Rochow Electronegativitate
Galiu element
1,07
Rank: 32 (Overall)
1,10
Rank: 30 (Overall)
cesiu element
ADD ⊕
8.5.2 Mulliken-Jaffe Electronegativitate
Poloniu element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
cesiu element
ADD ⊕
8.5.3 Allen Electronegativitate
berkelium eleme..
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
cesiu element
8.6 Electropositivity
8.6.1 Pauling Electropositivity
franciu element
2,87
Rank: 12 (Overall)
2,77
Rank: 17 (Overall)
Aur element
ADD ⊕
8.7 Energiile ionizarea
8.7.1 Primul nivel de energie
Crom element
527,00 kJ / mol
Rank: 78 (Overall)
581,00 kJ / mol
Rank: 62 (Overall)
cesiu element
8.7.2 Nivelul 2 Energie
Crom element
1.020,00 kJ / mol
Rank: 80 (Overall)
1.140,00 kJ / mol
Rank: 70 (Overall)
Ruteniu element
ADD ⊕
8.7.3 3rd Level Energy
Crom element
2.086,00 kJ / mol
Rank: 70 (Overall)
2.204,00 kJ / mol
Rank: 63 (Overall)
Osmiu element
ADD ⊕
8.7.4 4a Nivel de energie
Crom element
3.761,00 kJ / mol
Rank: 47 (Overall)
4.100,00 kJ / mol
Rank: 34 (Overall)
toriu element
ADD ⊕
8.7.5 A 5 Nivel de energie
Crom element
5.551,00 kJ / mol
Rank: 29 (Overall)
Nu e disponibil
Rank: N/A (Overall)
Dubnium element
ADD ⊕
8.7.6 A 6 Nivel de energie
Crom element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
seaborgiu element
ADD ⊕
8.7.7 Nivelul de energie al 7-lea
Crom element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
bohrium element
ADD ⊕
8.7.8 A 8-Level Energy
Crom element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
hassiu element
ADD ⊕
8.7.9 Al 9-lea nivel de energie
Crom element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
itriu element
ADD ⊕
8.7.10 A 10 Nivel de energie
Crom element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
Stronţiu element
8.7.11 11 Nivelul de energie
Magneziu element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
itriu element
8.7.12 12 Nivelul de energie
Magneziu element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
molibdenul element
8.7.13 13 Nivel de energie
Titan element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
molibdenul element
8.7.14 14 Nivel de energie
vanadiu element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
molibdenul element
8.7.15 15 Nivel de energie
Crom element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
Mangan element
8.7.16 16 Nivelul de energie
Mangan element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
Fier element
8.7.17 17 Nivelul de energie
Fier element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
Cobalt element
8.7.18 18 Nivelul de energie
Cobalt element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
Nichel element
8.7.19 19 Nivel de energie
Nichel element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
Cupru element
8.7.20 20 Nivelul de energie
Zinc element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
molibdenul element
8.7.21 21 Nivelul de energie
Zinc element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
molibdenul element
ADD ⊕
8.7.22 22 Nivelul de energie
Cupru element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
molibdenul element
ADD ⊕
8.7.23 23 Nivelul de energie
Cupru element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
molibdenul element
8.7.24 24 Nivelul de energie
Fier element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
molibdenul element
ADD ⊕
8.7.25 25 Nivelul de energie
molibdenul elem..
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
molibdenul element
8.7.26 26 Nivelul de energie
molibdenul elem..
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
molibdenul element
8.7.27 27 Nivelul de energie
molibdenul elem..
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
molibdenul element
8.7.28 28 Nivelul de energie
molibdenul elem..
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
molibdenul element
8.7.29 29 Nivelul de energie
molibdenul elem..
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
molibdenul element
8.7.30 30 Nivelul de energie
molibdenul elem..
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
molibdenul element
8.8 echivalent electrochimică
franciu element
1,75 g / amp-hr
Rank: 40 (Overall)
2,02 g / amp-hr
Rank: 29 (Overall)
beriliului element
ADD ⊕
8.9 Funcția de electroni de lucru
Platină element
2,70 eV
Rank: 41 (Overall)
Nu e disponibil
Rank: N/A (Overall)
cesiu element
ADD ⊕
8.10 Celelalte proprietăți chimice
anti coroziune, ionizarea, Izotopii radioactivi
Stabilitate chimică, anti coroziune, ionizarea, Izotopii radioactivi, Solubilitate
9 Atomic
9.1 Numar atomic
Tennessine elem..
59
Rank: 57 (Overall)
67
Rank: 49 (Overall)
litiu element
ADD ⊕
9.2 Configuratie electronica
[Xe] 4f3 6s2
[Xe] 4f11 6s2
9.3 Structura de cristal
Hexagonala Închide Ambalat (HCP)
Hexagonala Închide Ambalat (HCP)
9.3.1 rețelei de cristal
9.4 Atom
9.4.1 Numărul de Protonii
Tennessine elem..
59
Rank: 56 (Overall)
67
Rank: 48 (Overall)
litiu element
ADD ⊕
9.4.2 Numărul de Neutronii
Fleroviu element
82
Rank: 41 (Overall)
98
Rank: 34 (Overall)
litiu element
ADD ⊕
9.4.3 Numărul de Electronii
Tennessine elem..
59
Rank: 56 (Overall)
67
Rank: 48 (Overall)
litiu element
ADD ⊕
9.5 Raza unui Atom
9.5.1 Raza atomică
cesiu element
182,00 p.m
Rank: 11 (Overall)
176,00 p.m
Rank: 18 (Overall)
beriliului element
ADD ⊕
9.5.2 Raza covalentă
franciu element
203,00 p.m
Rank: 9 (Overall)
192,00 p.m
Rank: 17 (Overall)
beriliului element
ADD ⊕
9.5.3 Van der Waals Raza
franciu element
239,00 p.m
Rank: 14 (Overall)
216,00 p.m
Rank: 24 (Overall)
Zinc element
ADD ⊕
9.6 Greutate atomica
Tennessine elem..
140,91 amu
Rank: 51 (Overall)
164,93 amu
Rank: 44 (Overall)
litiu element
9.7 volum atomic
cesiu element
20,80 cm3 / mol
Rank: 15 (Overall)
18,70 cm3 / mol
Rank: 24 (Overall)
Mangan element
9.8 Numere atomice adiacente
9.8.1 Elementul precedent
9.8.2 Elementul următor
9.9 Valence Electron Potential
Platină element
42,64 (-EV)
Rank: 42 (Overall)
47,90 (-EV)
Rank: 31 (Overall)
franciu element
ADD ⊕
9.10 Constant zabrele
Mangan element
367,25 p.m
Rank: 29 (Overall)
357,73 p.m
Rank: 38 (Overall)
beriliului element
9.11 zabrele Unghiuri
π/2, π/2, 2 π/3
π/2, π/2, 2 π/3
9.12 C latice / A Ratio
cadmiu element
1,61
Rank: 4 (Overall)
1,57
Rank: 17 (Overall)
beriliului element
10 Mecanic
10.1 Densitate
10.1.1 Densitatea la temperatura camerei
hassiu element
6,77 g / cm3
Rank: 63 (Overall)
8,79 g / cm3
Rank: 46 (Overall)
litiu element
ADD ⊕
10.1.2 Densitate Când lichid (la mp)
Osmiu element
6,50 g / cm3
Rank: 39 (Overall)
8,34 g / cm3
Rank: 26 (Overall)
litiu element
ADD ⊕
10.2 Rezistență la tracțiune
Fier element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
indiu element
ADD ⊕
10.3 Viscozitate
Mercur element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
Mercur element
10.4 Presiunea de vapori
10.4.1 Presiunea de vapori la 1000 K
Stronţiu element
0,00 (Pa)
Rank: 25 (Overall)
0,00 (Pa)
Rank: 16 (Overall)
ceriu element
ADD ⊕
10.4.2 Presiunea de vapori la 2000 K
Crom element
13,20 (Pa)
Rank: 7 (Overall)
Nu e disponibil
Rank: N/A (Overall)
Tungsten element
ADD ⊕
10.5 Proprietățile elasticitate
10.5.1 shear Modulus
Osmiu element
14,80 GPa
Rank: 39 (Overall)
26,30 GPa
Rank: 28 (Overall)
Potasiu element
ADD ⊕
10.5.2 Modulus în vrac
Osmiu element
28,80 GPa
Rank: 40 (Overall)
40,20 GPa
Rank: 32 (Overall)
cesiu element
ADD ⊕
10.5.3 Modulul lui Young
Iridiu element
37,30 GPa
Rank: 41 (Overall)
64,80 GPa
Rank: 31 (Overall)
cesiu element
ADD ⊕
10.6 poisson Raportul
Galiu element
0,28
Rank: 16 (Overall)
0,23
Rank: 29 (Overall)
beriliului element
ADD ⊕
10.7 Alte proprietăți mecanice
Ductil, Maleabil
Ductil, Maleabil, Sectile
11 Magnetic
11.1 Caracteristici magnetice
11.1.1 Gravitație specifică
Cobalt element
6,77
Rank: 50 (Overall)
8,80
Rank: 35 (Overall)
litiu element
ADD ⊕
11.1.2 Comenzi magnetice
paramagnetic
paramagnetic
11.1.3 Permeabilitate
Fier element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
Bismut element
ADD ⊕
11.1.4 Susceptibil
Fier element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
Bismut element
ADD ⊕
11.2 Proprietăți electrice
11.2.1 Domeniul imobilier electrice
Conductor
Conductor
11.2.2 Rezistivitatea
Mercur element
0,70 nΩ · m
Rank: 65 (Overall)
814,00 nΩ · m
Rank: 4 (Overall)
taliu element
ADD ⊕
11.2.3 Conductivitate electrică
Argint element
0,01 10 6 / cm Ω
Rank: 50 (Overall)
0,01 10 6 / cm Ω
Rank: 52 (Overall)
Plutoniu element
ADD ⊕
11.2.4 electron afinitate
Aur element
50,00 kJ / mol
Rank: 21 (Overall)
50,00 kJ / mol
Rank: 21 (Overall)
Mercur element
ADD ⊕
12 Termic
12.1 Căldura specifică
litiu element
0,19 J / (kg K)
Rank: 32 (Overall)
0,16 J / (kg K)
Rank: 35 (Overall)
americiu element
12.2 Molara Capacitatea de căldură
americiu element
27,20 J / mol · K
Rank: 18 (Overall)
27,15 J / mol · K
Rank: 19 (Overall)
beriliului element
12.3 Conductivitate termică
Argint element
12,50 W / m · K
Rank: 59 (Overall)
16,20 W / m · K
Rank: 52 (Overall)
neptuniu element
12.4 Temperatura critică
litiu element
Nu e disponibil
Rank: N/A (Overall)
Nu e disponibil
Rank: N/A (Overall)
yterbiu element
ADD ⊕
12.5 Expansiunea termică
cesiu element
6,70 pm / (m · K)
Rank: 50 (Overall)
11,20 pm / (m · K)
Rank: 35 (Overall)
Tungsten element
ADD ⊕
12.6 entalpia
12.6.1 Entalpia de Vaporizarea
Tungsten element
296,80 kJ / mol
Rank: 29 (Overall)
241,00 kJ / mol
Rank: 38 (Overall)
Zinc element
12.6.2 Entalpie Fusion
Tungsten element
6,89 kJ / mol
Rank: 48 (Overall)
11,76 kJ / mol
Rank: 29 (Overall)
cesiu element
ADD ⊕
12.6.3 Entalpie de atomizare
Tungsten element
368,00 kJ / mol
Rank: 24 (Overall)
301,00 kJ / mol
Rank: 36 (Overall)
Mercur element
ADD ⊕
12.7 Standard Molar Entropy
protactiniu ele..
73,20 J / mol.K
Rank: 10 (Overall)
75,30 J / mol.K
Rank: 8 (Overall)
beriliului element
ADD ⊕