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Periodic Table Element Comparison: Compare Elements - Technetium vs Strontium

Compare Technetium and Strontium

Compare Technetium and Strontium on the basis of their properties, attributes and periodic table facts. Compare elements on more than 90 properties. All the elements of similar categories show a lot of similarities and differences in their chemical, atomic, physical properties and uses. These similarities and dissimilarities should be known while we study periodic table elements. You can study the detailed comparison between Technetium vs Strontium with most reliable information about their properties, attributes, facts, uses etc. You can compare Tc vs Sr on more than 90 properties like electronegativity , oxidation state, atomic shells, orbital structure, Electronaffinity, physical states, electrical conductivity and many more.

Facts

Technetium
43
Tc
98
Solid
Silver
transition metal
7
manganese family 
5
d
[Kr] 4d5 5s2
2157 °C
4265 °C
2, 8, 18, 13, 2
CAS7440-26-8
Neighborhood Elements of Technetium
Strontium
38
Sr
87.62
Solid
Silver
alkaline earth metal
2
beryllium family 
5
s
[Kr] 5s2
777 °C
1382 °C
2, 8, 18, 8, 2
CAS7440-24-6
Neighborhood Elements of Strontium

History

History
The element Technetium was discovered by Emilio Segrè in year 1937 in Italy. Technetium derived its name from from the Greek tekhnètos meaning 'artificial'
The element Strontium was discovered by William Cruickshank (chemist) in year 1790 in United Kingdom. Strontium derived its name derived its name from from Strontian, a small town in Scotland

Presence: Abundance in Nature and Around Us

Ppb by weight (1ppb =10^-7 %)
N/A
None
None
None
None
None
4×10-6%
5×10-6%
8.7e-06
0.00036
8.1e-06
4.6e-06

Crystal Structure and Atomic Structure

183 pm
8.5217391304348 cm3
156 pm
N/A
22
technetium Spectrum
273.5, 273.5, 438.8 pm
π/2, π/2, 2 π/3
P63/mmc
194

Simple Hexagonal

technetium Crystal Structure
219 pm
33.315589353612 cm3
192 pm
N/A
1.2
strontium Spectrum
608.49, 608.49, 608.49 pm
π/2, π/2, π/2
Fm_ 3m
225

Face Centered Cubic

strontium Crystal Structure

Atomic and Orbital Properties

Atomic Number
Number of Electrons (with no charge)
Number of Protons
Mass Number
Number of Neutrons
Shell structure (Electrons per energy level)
Electron Configuration
Valence Electrons
Oxidation State
Atomic Term Symbol (Quantum Numbers)
Shell structure
43
43
43
98
55
2, 8, 18, 13, 2
[Kr] 4d5 5s2
4d5 5s2
-3;-1  1;2;3;4;5;6;7
6S5/2
technetium Shells
38
38
38
87.62
49.62
2, 8, 18, 8, 2
[Kr] 5s2
5s2
 1;2
1S0
strontium Shells

Isotopes - Nuclear Properties

Isotopes
Naturally occurring stable isotopes:
None.
Naturally occurring stable isotopes:
84Sr, 86Sr, 87Sr, 88Sr.

Chemical Properties: Ionization Energies and electron affinity

6
1.9
53 kJ/mol
702, 1470, 2850 kJ/mol
2
0.95
5.03 kJ/mol
549.5, 1064.2, 4138, 5.5×103, 6910, 8760, 10230, 1.18×104, 1.56×104, 1.71×104 kJ/mol

Physical Properties

11.5 g/cm3
8.5217391304348

 

N/A
N/A
N/A
N/A


 

N/A
N/A
N/A

 

5×106 S/m
2×10-7 m Ω
7.8

 

51 W/(m K)
N/A

 

Paramagnetic
N/A
3.42×10-8
3.352×10-9
0.0003933

 

N/A

 

N/A
2.63 g/cm3
33.315589353612

 

N/A
6.1 GPa
N/A
0.28


 

1.5 MPa
N/A
N/A

 

7.7×106 S/m
1.3×10-7 m Ω
N/A

 

35 W/(m K)
0.0000225 K-1

 

Paramagnetic
N/A
1.32×10-9
1.16×10-10
3.47×10-6

 

N/A

 

N/A

Thermal Properties - Enthalpies and thermodynamics

2157 °C
4265 °C
N/A
7.8

 

23 kJ/mol
550 kJ/mol
N/A
777 °C
1382 °C
N/A
N/A

 

8 kJ/mol
137 kJ/mol
N/A

Regulatory and Health - Health and Safety Parameters and Guidelines

CAS7440-26-8
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A

 

N/A
N/A
CAS7440-24-6
N/A
4.2
1383
N/A
N/A
N/A
N/A
N/A

 

N/A
N/A