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Curium vs Nickel


Nickel vs Curium


Periodic Table

Symbol
Cm  
Ni  

Group Number
3  
15
10  
8

Period Number
7  
4  

Block
f block  
d block  

Element Family
Actinide  
Transition Metal  

CAS Number
7440519  
36
7440020  
99+

Space Group Name
-  
Fm_ 3m  

Space Group Number
225.00  
3
225.00  
3

Facts

Interesting Facts
  • Curium metal does not occur free in nature.
  • Curium metal is a synthetically produced metal.
  
  • Zinc metal found (obtain) in many forms like granules, foil, dust and in a powder form.
  • After iron, Zinc metal the second most abundant element in the earth crust.
  

Sources
Bombarding Plutonium with Helium Ions  
Found in Minerals, Mining, Ores of Minerals  

History
  
  

Who Discovered
Glenn T. Seaborg, Ralph A. James, Albert Ghiorso  
Axel Fredrik Cronstedt  

Discovery
In 1944  
In 1751  

Abundance
  
  

Abundance In Universe
0.00 %  
35
0.01 %  
5

Abundance In Sun
0.00 %  
30
0.01 %  
3

Abundance In Meteorites
0.00 %  
99+
1.30 %  
3

Abundance In Earth's Crust
0.00 %  
99+
0.01 %  
15

Abundance In Oceans
-  
0.00 %  
13

Abundance In Humans
0.00 %  
24
0.00 %  
17

Uses

Uses & Benefits
  • Curium metal is used to provide power to electrical equipment for space missions.
  
  • It has corrosion resistance and hence it is used to plate other metals.
  • Its alloys are very useful; Nichrome alloy is used in the hot coil of toasters and electric oven.
  

Industrial Uses
-  
Automobile Industry, Electrical Industry, Electronic Industry  

Medical Uses
-  
-  

Other Uses
Research Purposes  
Alloys  

Biological Properties
  
  

Toxicity
-  
Toxic  

Present in Human Body
No  
Yes  

In Blood
0.00 Blood/mg dm-3  
40
0.05 Blood/mg dm-3  
17

In Bone
0.00 p.p.m.  
99+
0.70 p.p.m.  
20

Physical

Melting Point
1,340.00 °C  
34
1,453.00 °C  
31

Boiling Point
3,110.00 °C  
31
2,732.00 °C  
40

Appearance
  
  

Physical State
Solid  
Solid  

Color
Silver  
Silver  

Luster
Metallic  
Metallic  

Hardness
  
  

Mohs Hardness
2.00  
17
4.00  
11

Brinell Hardness
320.00 MPa  
40
667.00 MPa  
20

Vickers Hardness
461.00 MPa  
37
638.00 MPa  
24

Speed of Sound
2,260.00 m/s  
99+
4,900.00 m/s  
16

Optical Properties
  
  

Refractive Index
1.30  
99+
1.68  
28

Reflectivity
60.00 %  
23
72.00 %  
11

Allotropes
No  
No  

α Allotropes
-  
-  

β Allotropes
-  
-  

γ Allotropes
-  
-  

Chemical

Chemical Formula
Cm  
Ni  

Isotopes
  
  

Known Isotopes
15  
24
25  
14

Electronegativity
  
  

Pauling Electronegativity
1.30  
33
1.91  
11

Sanderson Electronegativity
1.30  
25
1.94  
12

Allred Rochow Electronegativity
1.20  
28
1.75  
4

Mulliken-Jaffe Electronegativity
1.30  
33
1.91  
12

Allen Electronegativity
1.30  
40
1.88  
9

Electropositivity
  
  

Pauling Electropositivity
2.70  
22
2.09  
99+

Ionization Energies
  
  

1st Energy Level
581.00 kJ/mol  
99+
737.10 kJ/mol  
25

2nd Energy Level
1,196.00 kJ/mol  
99+
1,753.00 kJ/mol  
26

3rd Energy Level
2,026.00 kJ/mol  
99+
3,395.00 kJ/mol  
17

4th Energy Level
3,550.00 kJ/mol  
99+
5,300.00 kJ/mol  
24

5th Energy Level
5,810.00 kJ/mol  
99+
7,339.00 kJ/mol  
23

6th Energy Level
5,810.00 kJ/mol  
99+
10,400.00 kJ/mol  
15

7th Energy level
5,810.00 kJ/mol  
99+
12,800.00 kJ/mol  
10

8th Energy Level
5,810.00 kJ/mol  
99+
15,600.00 kJ/mol  
10

9th Energy Level
6,690.00 kJ/mol  
37
18,600.00 kJ/mol  
10

10th Energy Level
5,810.00 kJ/mol  
99+
21,670.00 kJ/mol  
14

11th Energy Level
5,810.00 kJ/mol  
99+
30,970.00 kJ/mol  
7

12th Energy Level
58,100.00 kJ/mol  
19
34,000.00 kJ/mol  
29

13th Energy Level
5,810.00 kJ/mol  
99+
37,100.00 kJ/mol  
7

14th Energy Level
5,810.00 kJ/mol  
40
41,500.00 kJ/mol  
8

15th Energy Level
58,100.00 kJ/mol  
99+
44,800.00 kJ/mol  
99+

16th Energy Level
58,100.00 kJ/mol  
99+
48,100.00 kJ/mol  
99+

17th Energy Level
581.00 kJ/mol  
99+
55,101.00 kJ/mol  
11

18th Energy Level
5,810.00 kJ/mol  
99+
58,570.00 kJ/mol  
12

19th Energy Level
581.00 kJ/mol  
99+
148,700.00 kJ/mol  
1

20th Energy Level
581.00 kJ/mol  
99+
159,000.00 kJ/mol  
3

21st Energy Level
5,810.00 kJ/mol  
20
169,400.00 kJ/mol  
3

22nd Energy Level
581.00 kJ/mol  
99+
182,700.00 kJ/mol  
2

23rd Energy Level
5,810.00 kJ/mol  
20
194,000.00 kJ/mol  
2

24th Energy Level
581.00 kJ/mol  
99+
737.10 kJ/mol  
21

25th Energy Level
581.00 kJ/mol  
99+
737.10 kJ/mol  
21

26th Energy Level
581.00 kJ/mol  
99+
737.10 kJ/mol  
21

27th Energy Level
581.00 kJ/mol  
99+
737.10 kJ/mol  
20

28th Energy Level
581.00 kJ/mol  
99+
737.10 kJ/mol  
26

29th Energy Level
581.00 kJ/mol  
99+
737.10 kJ/mol  
27

30th Energy Level
581.00 kJ/mol  
99+
737.00 kJ/mol  
21

Electrochemical Equivalent
3.07 g/amp-hr  
19
1.10 g/amp-hr  
99+

Electron Work Function
4.50 eV  
19
5.15 eV  
6

Other Chemical Properties
Ionization, Radioactive Isotopes  
Anti Corrosion, Ionization, Radioactive Isotopes  

Atomic

Atomic Number
96  
22
28  
99+

Electron Configuration
[Rn] 5f7 6d1 7s2  
[Ar] 3d8 4s2 Or [Ar] 3d9 4s1  

Crystal Structure
Double Hexagonal Close Packed (DHCP)  
Face Centered Cubic (FCC)  

Crystal Lattice
DHCP-Crystal-Structure-of-Curium.jpg#100  
FCC-Crystal-Structure-of-Nickel.jpg#100  

Atom
  
  

Number of Protons
96  
22
28  
99+

Number of Neutrons
151  
11
31  
99+

Number of Electrons
96  
22
28  
99+

Radius of an Atom
  
  

Atomic Radius
174.00 pm  
22
124.00 pm  
99+

Covalent Radius
169.00 pm  
28
124.00 pm  
99+

Van der Waals Radius
200.00 pm  
35
163.00 pm  
99+

Atomic Weight
247.00 amu  
18
58.69 amu  
99+

Atomic Volume
18.28 cm3/mol  
38
6.59 cm3/mol  
99+

Adjacent Atomic Numbers
  
  

Previous Element
Americium
  
Cobalt
  

Next Element
Berkelium
  
Copper
  

Valence Electron Potential
44.50 (-eV)  
39
42.00 (-eV)  
99+

Lattice Constant
336.25 pm  
99+
352.40 pm  
99+

Lattice Angles
-  
π/2, π/2, π/2  

Lattice C/A Ratio
1.67  
11
1.86  
4

Mechanical

Density
  
  

Density At Room Temperature
13.51 g/cm3  
26
8.91 g/cm3  
99+

Density When Liquid (at m.p.)
13.85 g/cm3  
25
7.81 g/cm3  
99+

Tensile Strength
350.00 MPa  
12
345.00 MPa  
13

Viscosity
0.00  
25
0.00  
8

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)  
22
0.00 (Pa)  
33

Vapor Pressure at 2000 K
0.00 (Pa)  
24
19.50 (Pa)  
6

Elasticity properties
  
  

Shear Modulus
32.00 GPa  
24
76.00 GPa  
12

Bulk Modulus
40.00 GPa  
38
180.00 GPa  
9

Young's Modulus
0.00 GPa  
99+
200.00 GPa  
12

Poisson Ratio
0.35  
9
0.31  
13

Other Mechanical Properties
-  
Ductile  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
13.51  
28
8.90  
99+

Magnetic Ordering
Antiferromagnetic  
Ferromagnetic  

Permeability
0.00 H/m  
17
0.00 H/m  
2

Susceptibility
0.00  
24
600.00  
2

Electrical Properties
  
  

Electrical Property
-  
Conductor  

Resistivity
1.25 nΩ·m  
99+
69.30 nΩ·m  
39

Electrical Conductivity
0.13 106/cm Ω  
19
0.14 106/cm Ω  
14

Electron Affinity
0.00 kJ/mol  
99+
112.00 kJ/mol  
7

Thermal

Specific Heat
0.10 J/(kg K)  
99+
0.44 J/(kg K)  
13

Molar Heat Capacity
27.50 J/mol·K  
21
26.07 J/mol·K  
39

Thermal Conductivity
11.00 W/m·K  
99+
90.90 W/m·K  
18

Critical Temperature
1,340.00 K  
99+
1,728.00 K  
35

Thermal Expansion
11.60 µm/(m·K)  
99+
13.40 µm/(m·K)  
34

Enthalpy
  
  

Enthalpy of Vaporization
331.60 kJ/mol  
40
371.80 kJ/mol  
29

Enthalpy of Fusion
15.00 kJ/mol  
22
17.57 kJ/mol  
14

Enthalpy of Atomization
-  
422.60 kJ/mol  
22

Standard Molar Entropy
52.50 J/mol.K  
36
29.90 J/mol.K  
99+

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