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Periodic Table Element Comparison: Compare Elements - Oxygen vs Calcium

Compare Oxygen and Calcium

Compare Oxygen and Calcium 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 Oxygen vs Calcium with most reliable information about their properties, attributes, facts, uses etc. You can compare O vs Ca on more than 90 properties like electronegativity , oxidation state, atomic shells, orbital structure, Electronaffinity, physical states, electrical conductivity and many more.

Facts

Oxygen
8
O
15.9994
Gas
Colorless
other nonmetal
16
oxygen family 
2
p
[He] 2s2 2p4
-218.3 °C
-182.9 °C
2, 6
CAS7782-44-7
Neighborhood Elements of Oxygen
Calcium
20
Ca
40.078
Solid
Silver
alkaline earth metal
2
beryllium family 
4
s
[Ar] 4s2
842 °C
1484 °C
2, 8, 8, 2
CAS7440-70-2
Neighborhood Elements of Calcium

History

History
The element Oxygen was discovered by Carl Wilhelm Scheele in year 1774 in Sweden and United Kingdom. Oxygen derived its name from from the Greek word oxy-, both 'sharp' and 'acid', and -gen, meaning 'acid-forming'
The element Calcium was discovered by Humphry Davy in year 1808 in United Kingdom. Calcium derived its name derived its name from from the Latin calx, meaning 'lime'

Presence: Abundance in Nature and Around Us

Ppb by weight (1ppb =10^-7 %)
0.01
0.009
0.4
0.46
0.86
0.61
7e-05
7e-05
0.011
0.05
4.2e-06
0.014

Crystal Structure and Atomic Structure

48 pm
11.19622113366 cm3
73 pm
152 pm
0.00028
oxygen Spectrum
540.3, 342.9, 508.6 pm
π/2, 2.313085, π/2
C12/m1
12

Base Centered Monoclinic

oxygen Crystal Structure
194 pm
25.856774193548 cm3
174 pm
N/A
0.43
calcium Spectrum
558.84, 558.84, 558.84 pm
π/2, π/2, π/2
Fm_ 3m
225

Face Centered Cubic

calcium 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
8
8
8
15.9994
7.9994
2, 6
[He] 2s2 2p4
2s2 2p4
-2;-1  1;2
3P2
oxygen Shells
20
20
20
40.078
20.078
2, 8, 8, 2
[Ar] 4s2
4s2
 1;2
1S0
calcium Shells

Isotopes - Nuclear Properties

Isotopes
Naturally occurring stable isotopes:
16O, 17O, 18O.
Naturally occurring stable isotopes:
40Ca, 42Ca, 43Ca, 44Ca, 46Ca.

Chemical Properties: Ionization Energies and electron affinity

2
3.44
141 kJ/mol
1313.9, 3388.3, 5300.5, 7469.2, 10989.5, 13326.5, 71330, 84078 kJ/mol
2
1
2.37 kJ/mol
589.8, 1145.4, 4912.4, 6491, 8153, 10496, 12270, 14206, 18191, 20385, 57110 kJ/mol

Physical Properties

1.429 g/l
11.19622113366

 

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


 

N/A
N/A
N/A

 

N/A
N/A
N/A

 

0.02658 W/(m K)
N/A

 

Paramagnetic
N/A
1.335×10-6
4.27184×10-8
1.90772×10-6

 

1.000271

 

317.5 m/s
1.55 g/cm3
25.856774193548

 

20 GPa
7.4 GPa
17 GPa
0.31


 

1.75 MPa
N/A
167 MPa

 

2.9×107 S/m
3.4×10-8 m Ω
N/A

 

200 W/(m K)
0.0000223 K-1

 

Paramagnetic
N/A
1.38×10-8
5.531×10-10
2.139e-05

 

N/A

 

3810 m/s

Thermal Properties - Enthalpies and thermodynamics

-218.3 °C
-182.9 °C
154.59 K
N/A

 

0.222 kJ/mol
3.41 kJ/mol
N/A
842 °C
1484 °C
N/A
N/A

 

8.54 kJ/mol
155 kJ/mol
-990 J/(kg K)

Regulatory and Health - Health and Safety Parameters and Guidelines

CAS7782-44-7
RTECSRS2060000
2.2
1073
N/A
0
Oxidizing Agent
3
2

 

N/A
N/A
CAS7440-70-2
N/A
4.2
1855
N/A
1
Water Reactive
3
2

 

N/A
N/A

Compare With Other Elements