User:Double sharp/Pretty picture

Standard reduction potentials of cation-forming elements (Z ≤ 116)

1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18
H	He
Li	Be											B	C	N	O	F	Ne
Na	Mg											Al	Si	P	S	Cl	Ar
K	Ca	Sc	Ti	V	Cr	Mn	Fe	Co	Ni	Cu	Zn	Ga	Ge	As	Se	Br	Kr
Rb	Sr	Y	Zr	Nb	Mo	Tc	Ru	Rh	Pd	Ag	Cd	In	Sn	Sb	Te	I	Xe
Cs	Ba	Lu	Hf	Ta	W	Re	Os	Ir	Pt	Au	Hg	Tl	Pb	Bi	Po	At	Rn
Fr	Ra	Lr	Rf	Db	Sg	Bh	Hs	Mt	Ds	Rg	Cn	Nh	Fl	Mc	Lv	Ts	Og
		La	Ce	Pr	Nd	Pm	Sm	Eu	Gd	Tb	Dy	Ho	Er	Tm	Yb
		Ac	Th	Pa	U	Np	Pu	Am	Cm	Bk	Cf	Es	Fm	Md	No
Highly reactive: E0 ≤ –2.0 V   Less reactive: –2.0 < E0 ≤ 0   Noble (unreactive): E0 > 0   No simple cationic chemistry   Unknown

All data up to Lr is from NIST, and is for Mⁿ⁺/M standard reduction potentials at pH 0. The more stable cation in aqueous solution has been used in cases where multiple ions exist (e.g. Ce³⁺ and Ce⁴⁺). Anions such as RuO²⁻
₄ have been ignored. Some of the cations have only a notional existence, particularly for the transition metals and the nonmetals that have been included (H, Ge, Te, I, Rn).

Note that the data for the late actinides (Bk–Lr) varies widely between sources. A consistent set from NIST has been used, but they tend to cluster around the −2.0 V borderline. Therefore, the colouring there should be taken with a pinch of radioactive salt. Also, no experimental data is available for the elements beyond lawrencium, and no predictions are available for tennessine and oganesson. I have thus used predictions for Rf through Lv and greyed out Ts and Og. (In all this I am not considering predictions for unknown eighth-period elements beyond oganesson.) There is some confusion on the signs of the reduction potentials for Nh through Lv in the sources.

This figure has been adapted and expanded from Sandbh, whose original figure showed only the d-block elements. I (with permission) took and expanded it to the whole table, partially to illustrate a point about group 3 behaving as an s-block group chemically, but mostly because it looked pretty. (OTOH, as I later understood, this is not a general thing, and the line between characteristic main-group and transition behaviour changes a lot depending on what property you are looking at.)