Goldschmidt classification

The Goldschmidt classification , named after Victor M. Goldschmidt , is a classification of chemical elements commonly used in geochemistry according to their affinity to different carrier phases in siderophil ( iron- loving, from σίδηρος (sideros, Greek) = iron), lithophil ( silicate - loving, from λίϑο? (lithos, Greek) = stone; rock), chalcophilic ( sulfur- loving, from χαλκός (chalkos, Greek) = ore, metal, especially copper) and atmophilic ( gas- loving, from atmosphere). The Goldschmidt classification plays a role in the differentiation of an initially chemically homogeneous planet or asteroid . H. in the formation of an iron core, as well as a mantle and a crust. For example, siderophilic elements are preferably found in the iron core and lithophilic elements are preferably found in the mantle or crust of a planet.

The Goldschmidt classification represents a successful application of the principles of the HSAB concept .

Classification

Atmophile elements: H , N , noble gases
Chalcophilic elements: Ag , As , Bi , Cd , Cu , Ga , Hg , In , Mo , Pb , Po , S , Sb , Se , Te , Tl , Zn
Lithophilic elements: Al , At , B , Ba , Be , Br , Ca , Cl , Cr , Cs , F , I , Hf , K , Li , Mg , Mn , Na , Nb , O , Rb , Sc , Si , Sr , Ta , Th , Ti , U , V , Y , Zr , W , lanthanoids
Siderophilic elements: Au , C , Co , Fe , Ge , Ir , Ni , Os , P , Pd , Pt , Re , Rh , Ru , Sn
Highly siderophilic elements: Au , Ir , Os , Pd , Pt , Re , Rh , Ru

Only the main affinities are considered here. Some elements have an affinity for several phases, e.g. B. Oxygen (O) is lithophilic and atmophilic.

**Goldschmidt classification in the periodic table of the elements**
	1	2											13	14th	15th	16	17th	18th
1	1 H.																	2 He
2	3 li	4 Be											5 B	6 C	7 N.	8 O	9 F.	10 Ne
3	11 Well	12 mg	3	4th	5	6th	7th	8th	9	10	11	12	13 Al	14 Si	15 p	16 pp	17 cl	18 ares
4th	19 K	20 approx	21 Sc	22 Ti	23 V	24 Cr	25 mn	26 feet	27 Co	28 Ni	29 Cu	30 notes	31 Ga	32 Ge	33 As	34 Se	35 Br	36 kr
5	37 Rb	38 Sr	39 Y	40 Zr	41 Nb	42 Mon	(43) Tc	44 Ru	45 Rh	46 Pd	47 Ag	48 Cd	49 in	50 Sn	51 Sb	52 te	53 I.	54 Xe
6th	55 Cs	56 Ba	57-71 Lan	72 Hf	73 days	74 W	75 Re	76 Os	77 Ir	78 Pt	79 Au	80 ed	81 Tl	82 Pb	83 bi	84 Po	85 at	86 para
7th	87 Fr	88 Ra	89-103 Act	(104) Ref	(105) Db	(106) Sg	(107) Bh	(108) Hs	(109) Mt	(110) Ds	(111) Rg	(112) Cn	(113) Nh	(114) Fl	(115) Mc	(116) Lv	(117) Ts	(118) above

Lanthanoids			57 La	58 Ce	59 Pr	60 Nd	(61) Pm	62 Sm	63 Eu	64 Gd	65 p	66 Dy	67 Ho	68 he	69 Tm	70 yb	71 Lu
Actinoids			89 Ac	90 th	91 Pa	92 U	(93) Np	(94) Pu	(95) Am	(96) cm	(97) Bk	(98) Cf.	(99) It	(100) Fm	(101) Md	(102) No.	(103) Lr

**Legend**
atmophile	chalcophilic	lithophile	siderophilic	very rare

swell

↑ Reaction principles and s-Block Elements, lecture script ( Memento of the original from February 16, 2010 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. (English, PDF, accessed on May 6, 2009, 97 kB). @1@ 2

[1] Reaction principles and s-Block Elements, lecture script ( Memento of the original from February 16, 2010 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. (English, PDF, accessed on May 6, 2009, 97 kB). @1@ 2