46 2 · 8 · 18 · 18

Palladium, Pd, element 46

Transition metal· Period 5· Group 10· d-block

Configuration [Kr]4d10

Atomic weight
106.42Da
Phase
solid
Density
12g/cm³
Melting point
1,827.95K 1,554.8 °C
Boiling point
3,236.15K 2,963 °C
Electronegativity
2.2

Soft white ductile transition element. Found with some copper and nickel ores. Does not react with oxygen at normal temperatures. Dissolves slowly in hydrochloric acid. Discovered in 1803 by W.H. Wollaston. 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 palladium

Atomic weight The standard atomic weight. For an element with no stable isotope, the mass of its longest-lived isotope.
106.42Da
Source: mendeleev
Electron configuration
[Kr]4d10
Source: mendeleev
Uncertainty of the atomic weight
0.01Da
Source: mendeleev
Electron configuration in full The electron configuration with the noble-gas core written out.
1s22s22p63s23p63d104s24p64d10
Source: Worked outfrom electron configuration
Electrons in each shell Counted from the electron configuration, from the first shell outward.
2 · 8 · 18 · 18
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
1s0.941145.0589
2s12.117233.8828
2p4.0741.93
3s16.778829.2212
3p16.980429.0196
3d14.548931.4511
4s27.01418.986
4p28.276817.7232
4d32.382413.6176