80 2 · 8 · 18 · 32 · 18 · 2

Mercury, Hg, element 80

Transition metal· Period 6· Group 12· d-block

Configuration [Xe]4f145d106s2

Atomic weight
200.592Da
Phase
liquid
Density
13.5336g/cm³
Melting point
234.321K -38.83 °C
Boiling point
629.769K 356.62 °C
Electronegativity
1.9

Heavy silvery liquid metallic element, belongs to the zinc group. Used in thermometers, barometers and other scientific apparatus. Less reactive than zinc and cadmium, does not displace hydrogen from acids. Forms a number of complexes and organomercury compounds. 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 mercury

Atomic weight The standard atomic weight. For an element with no stable isotope, the mass of its longest-lived isotope.
200.592Da
Source: mendeleev
Electron configuration
[Xe]4f145d106s2
Source: mendeleev
Uncertainty of the atomic weight
0.003Da
Source: mendeleev
Electron configuration in full The electron configuration with the noble-gas core written out.
1s22s22p63s23p63d104s24p64d104f145s25p65d106s2
Source: Worked outfrom electron configuration
Electrons in each shell Counted from the electron configuration, from the first shell outward.
2 · 8 · 18 · 32 · 18 · 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
1s1.541978.4581
2s20.890659.1094
2p4.49975.501
3s23.458756.5413
3p22.479857.5202
3d13.480466.5196
4s34.755245.2448
4p35.59444.406
4d37.53242.468
4f38.239241.7608
5s51.88928.111
5p54.03325.967
5d59.14420.856
6s68.846611.1534