Simbol
Ce
Număr grup
3
Rank: 15 (Overall)
0
17
👆🏻
perioada Număr
6
Rank: 2 (Overall)
2
7
👆🏻
bloc
f block
Element de familie
lantanidelor
Numărul CAS
7440451
Rank: 41 (Overall)
7429905
54386242
👆🏻
Nume grup spațiu
P63 / mmc
Număr spațiu grup
194,00
Rank: 7 (Overall)
11
276
👆🏻
Fapte interesante
- Ceriul este un metal de pământuri rare, dar totuși nu este deloc rar.
- Compusul său netoxic, sulfura de ceriu, are o culoare roșie bogată și este utilizat ca pigment.
- Ceriul metalic este utilizat și în televizoare cu ecran plat, becuri, proiectoare etc.
surse
S-au găsit în minerale, Minerit, Minereurile de minerale
Istorie
care a descoperit
Martin Heinrich Klaproth, Jöns Jakob Berzelius, Wilhelm Hisinger
Descoperire
in 1803
Abundenţă
Abundenței În Universul
0,00 %
Rank: 17 (Overall)
0
0.11
👆🏻
Abundenței În Soare
0,00 %
Rank: 23 (Overall)
0
0.1
👆🏻
Abundenței În Meteoriți
0,00 %
Rank: 27 (Overall)
0
22
👆🏻
Abundenței în scoarța Pământului
0,01 %
Rank: 18 (Overall)
1E-37
8.1
👆🏻
Abundenței în oceanele
0,00 %
Rank: 33 (Overall)
0
1.1
👆🏻
Abundenței la om
0,00 %
Rank: 24 (Overall)
0
1.4
👆🏻
Utilizări și beneficii
- Se folosește pentru a include silexuri pentru brichete.
- Compusul său, oxidul de ceriu (III), este folosit drept catalizator; acesta este introdus în pereții cuptorului deoarece previne acumularea reziduurilor de gătit.
Utilizări industriale
Industria chimica
Utilizări medicale
Cercetare medicala
alte utilizări
Aliaje
Proprietățile biologice
Toxicitate
moderat Toxic
Prezent în corpul uman
da
in Blood
0,00 Sânge / mg dm-3
Rank: 30 (Overall)
0
1970
👆🏻
in Bone
2,70 ppm
Rank: 14 (Overall)
0
170000
👆🏻
Punct de topire
795,00 ° C
Rank: 56 (Overall)
-38.83
3410
👆🏻
Punct de fierbere
3.257,00 ° C
Rank: 24 (Overall)
0
5660
👆🏻
Aspect
Stare fizică
Solid
Culoare
silvery alb
Luciu
Lucios
Duritate
Mohs Duritate
2,50
Rank: 15 (Overall)
0.2
8.5
👆🏻
Duritatea Brinell
186,00 MPa
Rank: 53 (Overall)
0.14
3490
👆🏻
Duritatea Vickers
210,00 MPa
Rank: 52 (Overall)
0
3920
👆🏻
Viteza sunetului
2.100,00 Domnișoară
Rank: 60 (Overall)
818
16200
👆🏻
Proprietăți optice
Indicele de refractie
2,20
Rank: 9 (Overall)
0.155
3.41
👆🏻
reflexiei
68,00 %
Rank: 15 (Overall)
5
97
👆🏻
forme alotropice
Nu
alfa forme alotropice
-
p forme alotropice
-
y forme alotropice
-
Formula chimica
Ce
izotopii
Izotopi cunoscute
30
Rank: 9 (Overall)
0
38
👆🏻
Electronegativitate
Pauling Electronegativitate
1,12
Rank: 44 (Overall)
0
2.6
👆🏻
Sanderson Electronegativitate
1,12
Rank: 37 (Overall)
0.22
2.56
👆🏻
Allred Rochow Electronegativitate
1,08
Rank: 32 (Overall)
0.86
1.9
👆🏻
Mulliken-Jaffe Electronegativitate
1,12
Rank: 43 (Overall)
0.62
2.48
👆🏻
Allen Electronegativitate
1,12
Rank: 54 (Overall)
0.659
2.7
👆🏻
Electropositivity
Pauling Electropositivity
2,88
Rank: 11 (Overall)
1.46
3.3
👆🏻
Energiile ionizarea
Primul nivel de energie
534,40 kJ / mol
Rank: 76 (Overall)
375.7
26130
👆🏻
Nivelul 2 Energie
1.050,00 kJ / mol
Rank: 79 (Overall)
392.8
28750
👆🏻
3rd Level Energy
1.949,00 kJ / mol
Rank: 82 (Overall)
392.8
34230
👆🏻
4a Nivel de energie
3.547,00 kJ / mol
Rank: 65 (Overall)
375.7
37066
👆🏻
A 5 Nivel de energie
6.325,00 kJ / mol
Rank: 37 (Overall)
392
97510
👆🏻
A 6 Nivel de energie
7.490,00 kJ / mol
Rank: 38 (Overall)
1007
105800
👆🏻
Nivelul de energie al 7-lea
5.340,00 kJ / mol
Rank: 72 (Overall)
1007
114300
👆🏻
A 8-Level Energy
5.340,00 kJ / mol
Rank: 71 (Overall)
730
125300
👆🏻
Al 9-lea nivel de energie
5.340,00 kJ / mol
Rank: 69 (Overall)
1007
134700
👆🏻
A 10 Nivel de energie
5.340,00 kJ / mol
Rank: 68 (Overall)
392
144300
👆🏻
11 Nivelul de energie
5.340,00 kJ / mol
Rank: 73 (Overall)
392
169988
👆🏻
12 Nivelul de energie
5.340,00 kJ / mol
Rank: 76 (Overall)
0
189368
👆🏻
13 Nivel de energie
5.650,00 kJ / mol
Rank: 58 (Overall)
1007
76015
👆🏻
14 Nivel de energie
5.340,00 kJ / mol
Rank: 52 (Overall)
380
86450
👆🏻
15 Nivel de energie
53.400,00 kJ / mol
Rank: 65 (Overall)
33000
100700
👆🏻
16 Nivelul de energie
53.400,00 kJ / mol
Rank: 53 (Overall)
375.7
109480
👆🏻
17 Nivelul de energie
534,40 kJ / mol
Rank: 81 (Overall)
375.7
122200
👆🏻
18 Nivelul de energie
5.340,00 kJ / mol
Rank: 67 (Overall)
0
134810
👆🏻
19 Nivel de energie
534,40 kJ / mol
Rank: 80 (Overall)
375.7
148700
👆🏻
20 Nivelul de energie
534,00 kJ / mol
Rank: 71 (Overall)
0
171200
👆🏻
21 Nivelul de energie
5.346,00 kJ / mol
Rank: 24 (Overall)
375.7
179100
👆🏻
22 Nivelul de energie
594,00 kJ / mol
Rank: 46 (Overall)
330
184900
👆🏻
23 Nivelul de energie
5.346,00 kJ / mol
Rank: 26 (Overall)
357.6
198800
👆🏻
24 Nivelul de energie
565,50 kJ / mol
Rank: 63 (Overall)
297.3
195200
👆🏻
25 Nivelul de energie
534,40 kJ / mol
Rank: 68 (Overall)
0
121900
👆🏻
26 Nivelul de energie
565,50 kJ / mol
Rank: 69 (Overall)
357.6
127700
👆🏻
27 Nivelul de energie
565,50 kJ / mol
Rank: 65 (Overall)
0
133800
👆🏻
28 Nivelul de energie
565,50 kJ / mol
Rank: 69 (Overall)
297.3
139800
👆🏻
29 Nivelul de energie
565,50 kJ / mol
Rank: 71 (Overall)
0
148100
👆🏻
30 Nivelul de energie
594,00 kJ / mol
Rank: 52 (Overall)
0
154500
👆🏻
echivalent electrochimică
1,74 g / amp-hr
Rank: 45 (Overall)
0.16812
8.3209
👆🏻
Funcția de electroni de lucru
2,84 eV
Rank: 50 (Overall)
2.14
6
👆🏻
Celelalte proprietăți chimice
Stabilitate chimică, anti coroziune, ionizarea, Izotopii radioactivi, Solubilitate
Numar atomic
58
Rank: 58 (Overall)
3
117
👆🏻
Configuratie electronica
[Xe] 4f1 5d1 6s2
Structura de cristal
Dublu hexagonala Închide Prânz la pachet (DHCP)
rețelei de cristal
Atom
Numărul de Protonii
58
Rank: 57 (Overall)
3
117
👆🏻
Numărul de Neutronii
82
Rank: 42 (Overall)
4
285
👆🏻
Numărul de Electronii
58
Rank: 57 (Overall)
3
117
👆🏻
Raza unui Atom
Raza atomică
181,80 p.m
Rank: 14 (Overall)
0
348
👆🏻
Raza covalentă
204,00 p.m
Rank: 8 (Overall)
0
260
👆🏻
Van der Waals Raza
235,00 p.m
Rank: 21 (Overall)
0
348
👆🏻
Greutate atomica
140,12 amu
Rank: 52 (Overall)
6.94
294
👆🏻
volum atomic
20,67 cm3 / mol
Rank: 27 (Overall)
1.39
71.07
👆🏻
Numere atomice adiacente
Elementul precedent
Elementul următor
Valence Electron Potential
41,78 (-EV)
Rank: 46 (Overall)
0
392.42
👆🏻
Constant zabrele
362,00 p.m
Rank: 38 (Overall)
0
891.25
👆🏻
zabrele Unghiuri
π/2, π/2, 2 π/3
C latice / A Ratio
1,59
Rank: 31 (Overall)
0.423
1.9
👆🏻
Densitate
Densitatea la temperatura camerei
6,77 g / cm3
Rank: 68 (Overall)
0.534
40.7
👆🏻
Densitate Când lichid (la mp)
6,55 g / cm3
Rank: 67 (Overall)
0.512
41
👆🏻
Rezistență la tracțiune
270,00 MPa
Rank: 17 (Overall)
0.1
11000
👆🏻
Viscozitate
0,00
Rank: 23 (Overall)
1.5E-05
0.0035
👆🏻
Presiunea de vapori
Presiunea de vapori la 1000 K
0,00 (Pa)
Rank: 36 (Overall)
0
121
👆🏻
Presiunea de vapori la 2000 K
1,04 (Pa)
Rank: 13 (Overall)
0
774
👆🏻
Proprietățile elasticitate
shear Modulus
13,50 GPa
Rank: 52 (Overall)
1.3
222
👆🏻
Modulus în vrac
21,50 GPa
Rank: 54 (Overall)
0
462
👆🏻
Modulul lui Young
33,60 GPa
Rank: 48 (Overall)
0
528
👆🏻
poisson Raportul
0,24
Rank: 27 (Overall)
0.032
0.47
👆🏻
Alte proprietăți mecanice
Ductil, Maleabil
Caracteristici magnetice
Gravitație specifică
6,77
Rank: 66 (Overall)
0.53
4500
👆🏻
Comenzi magnetice
paramagnetic
Permeabilitate
0,00 H / m
Rank: 7 (Overall)
1.25643E-06
0.0063
👆🏻
Susceptibil
0,00
Rank: 24 (Overall)
-0.000166
200000
👆🏻
Proprietăți electrice
Domeniul imobilier electrice
Conductor
Rezistivitatea
828,00 nΩ · m
Rank: 3 (Overall)
0.1
961
👆🏻
Conductivitate electrică
0,01 10 6 / cm Ω
Rank: 59 (Overall)
0
0.63
👆🏻
electron afinitate
50,00 kJ / mol
Rank: 26 (Overall)
0
222.8
👆🏻
Căldura specifică
0,19 J / (kg K)
Rank: 33 (Overall)
0.1
3.6
👆🏻
Molara Capacitatea de căldură
26,94 J / mol · K
Rank: 30 (Overall)
13.1
62.7
👆🏻
Conductivitate termică
11,30 W / m · K
Rank: 63 (Overall)
0
429
👆🏻
Temperatura critică
1.071,00 K
Rank: 58 (Overall)
26.3
3695
👆🏻
Expansiunea termică
6,30 pm / (m · K)
Rank: 67 (Overall)
4.5
97
👆🏻
entalpia
Entalpia de Vaporizarea
414,00 kJ / mol
Rank: 22 (Overall)
7.32
799.1
👆🏻
Entalpie Fusion
5,46 kJ / mol
Rank: 59 (Overall)
2.1
35.23
👆🏻
Entalpie de atomizare
381,00 kJ / mol
Rank: 31 (Overall)
61.5
837
👆🏻
Standard Molar Entropy
72,00 J / mol.K
Rank: 12 (Overall)
9.5
198.1
👆🏻