75 2 · 8 · 18 · 32 · 13 · 2

Rhenium, Re, element 75

Transition metal· Period 6· Group 7· d-block

Configuration [Xe]4f145d56s2

Atomic weight
186.207Da
Phase
solid
Density
20.8g/cm³
Melting point
3,458.15K 3,185 °C
Boiling point
5,863.15K 5,590 °C
Electronegativity
1.9

Silvery-white metallic transition element. Obtained as a by-product of molybdenum refinement. Rhenium-molybdenum alloys are superconducting. Description from mendeleev.

Back to the table
The outermost shell: the valence electronsThe inner shellsThe nucleus One bead for each electron, on the ring of its shell, counted from the nucleus out. The rings turn at their own pace; the model is Bohr's picture of the atom, which places electrons in shells but not on true orbits.

Atomic properties

5 of 5 fields have a value for rhenium

Atomic weight The standard atomic weight. For an element with no stable isotope, the mass of its longest-lived isotope.
186.207Da
Source: mendeleev
Electron configuration
[Xe]4f145d56s2
Source: mendeleev
Uncertainty of the atomic weight
0.001Da
Source: mendeleev
Electron configuration in full The electron configuration with the noble-gas core written out.
1s22s22p63s23p63d104s24p64d104f145s25p65d56s2
Source: Worked outfrom electron configuration
Electrons in each shell Counted from the electron configuration, from the first shell outward.
2 · 8 · 18 · 32 · 13 · 2
Source: Worked outfrom electron configuration

Screening of each subshell

Clementi's screening constants: how much of the nucleus's charge the other electrons hide from an electron in each subshell. What is left is the effective nuclear charge it feels.

SubshellScreening σEffective charge Z − σ
1s1.452273.5478
2s19.590255.4098
2p4.43870.562
3s22.351552.6485
3p21.565553.4345
3d13.545361.4547
4s33.643641.3564
4p34.626840.3732
4d36.945638.0544
4f39.075235.9248
5s50.64324.357
5p52.85622.144
5d57.61717.383
6s64.88410.116