45 2 · 8 · 18 · 16 · 1

Rhodium, Rh, element 45

Transition metal· Period 5· Group 9· d-block

Configuration [Kr]4d85s1

Atomic weight
102.906Da
Phase
solid
Density
12.4g/cm³
Melting point
2,236.15K 1,963 °C
Boiling point
3,968.15K 3,695 °C
Electronegativity
2.28

Silvery white metallic transition element. Found with platinum and used in some platinum alloys. Not attacked by acids, dissolves only in aqua regia. 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 rhodium

Atomic weight The standard atomic weight. For an element with no stable isotope, the mass of its longest-lived isotope.
102.9055Da
Source: mendeleev
Electron configuration
[Kr]4d85s1
Source: mendeleev
Uncertainty of the atomic weight
2×10−5Da
Source: mendeleev
Electron configuration in full The electron configuration with the noble-gas core written out.
1s22s22p63s23p63d104s24p64d85s1
Source: Worked outfrom electron configuration
Electrons in each shell Counted from the electron configuration, from the first shell outward.
2 · 8 · 18 · 16 · 1
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
1s0.924444.0756
2s11.845433.1546
2p4.059640.9404
3s16.561528.4385
3p16.845628.1544
3d14.59530.405
4s26.418418.5816
4p27.860417.1396
4d31.557613.4424
5s38.36056.6395