Hybrid Communications Elemental Ledger (Z = 1 → 118)

Z	Element	Industries	Markets	Comms	Spectrum Anchors	Circularity
1	H	fuels, fusion, chemicals	H₂ hubs, ammonia	RF, Opt, Sat, Human	β (³H), no Kα	H₂ loops, LOHC
2	He	cryogenics, lasers	constrained ASU	Fiber, Sat, Human	—	reliquefaction
3	Li	batteries, ceramics	EV cathodes	Fiber, RF, Sat, Human	—, soft Kα	Li-ion recycling
4	Be	aerospace, neutron reflectors	alloy niche	RF, Opt, Human	—, soft Kα	scrap loops
5	B	control rods, glass, doping	boric acid	Fiber, RF, Human	478γ, soft Kα	slag recovery
6	C	electrodes, graphene, DAC	graphite, ¹⁴C labs	Fiber, Opt, Human	511γ (PET), soft Kα	DAC, anode recycling
7	N	fertilizers, GaN/AlN	NH₃ trade	RF, Sat, Human	511γ (¹³N), soft Kα	nitrate loop
8	O	medical O₂, LOX rockets	tonnage	Fiber, Sat, Human	511γ (¹⁵O), soft Kα	O₂ onsite
9	F	UF₆, etch gases, PET	HF chain	RF, Fiber, Human	511γ (¹⁸F), soft Kα	PFC abatement
10	Ne	lithography lasers	ASU co-product	Sat, Fiber, Human	—	Ne recycle
11	Na	glass, ²²Na PET	soda ash	Fiber, RF, Human	1274γ, Kα=1.041	Na-ion batteries
12	Mg	alloys, refractories	EV alloys	Fiber, Human	—, Kα=1.253	scrap loops
13	Al	structures, conductors	LME traded	Fiber, Sat, Human	1808γ (²⁶Al), Kα=1.486	high recycling
14	Si	semiconductors, PV	wafers	Fiber, Opt, Q, Human	—, Kα=1.740	PV recycle
15	P	fertilizers, InP/GaP	phosphate	Sat, Human	β-only, Kα=2.013	struvite recovery
16	S	H₂SO₄, MoS₂	refinery link	RF, Human	—, Kα=2.307	MoS₂ reclaim
17	Cl	PVC, disinfectants	chlor-alkali	Fiber, Human	—, Kα=2.622	PVC recycling
18	Ar	welding, plasma	ASU	RF, Sat, Human	1294γ, Kα=2.957	recycle skids
19	K	fertilizers, glass	potash	Sat, Human	1461γ, Kα=3.312	ash loops
20	Ca	cement, fluxes	cement index	Sat, Human	—, Kα=3.691	low-C cements
21	Sc	alloys, SOFC	boutique	RF, Opt, Human	889/1120γ, Kα=4.090	alloy recycle
22	Ti	aerospace, pigments	sponge/ingot	Sat, Fiber, Human	1157γ, Kα=4.511	powder reclaim
23	V	steel, VRFBs	ferro-V	RF, Sat, Human	983γ, Kα=4.952	electrolyte reuse
24	Cr	stainless, plating	ferrochrome	Fiber, Human	320γ, Kα=5.415	scrap, Cr(III)
25	Mn	steel, cathodes	ferro-Mn	Sat, RF, Human	835γ, Kα=5.899	battery recycle
26	Fe	steel, transformers	steel index	Sat, Fiber, Human	1099γ (⁵⁹Fe), Kα=6.404	EAF loops
27	Co	superalloys, batteries	EV demand	RF, Sat, Human	1173/1332γ, Kα=6.930	cathode recovery
28	Ni	stainless, plating	LME	Fiber, Sat, Human	—, Kα=7.478	stainless/battery loops
29	Cu	grids, broadband	LME	Fiber, RF, Human	511γ (⁶⁴Cu), Kα=8.048	e-waste Cu recovery
30	Zn	galvanizing, Zn-air	construction	RF, Human	1116γ, Kα=8.638	galvanizing loops
31	Ga	GaN/GaAs, LEDs	by-product	RF, Opt, Human	93–300γ, Kα=9.251	LED reclaim
32	Ge	optics, detectors	critical	Opt, Q, Human	—, Kα=9.886	IR lens recycle
33	As	semiconductors	restricted	Fiber, Human	559/596γ, Kα=10.543	GaAs reclaim
34	Se	CdSe PV, glass	Cu refining	Opt, Human	136/265γ, Kα=11.222	PV recycling
35	Br	flame retardants, ZnBr flow	brines	Sat, Human	554/777γ, Kα=11.924	electrolyte reuse
36	Kr	lighting, ⁸⁵Kr tracer	ASU	Sat, Human	514γ, Kα=12.648	noble gas recycle
37	Rb	PET, clocks	niche	Q, Fiber, Human	511γ (⁸²Rb), Kα=13.395	generator loops
38	Sr	magnets, therapy	ceramics	Human, RF	⁹⁰Sr/⁹⁰Y β, Kα=14.165	CRT/ferrite recovery
39	Y	lasers, therapy	REE basket	Opt, Human	898/1836γ, Kα=14.958	phosphor recycle
40	Zr	cladding, ceramics	zircon	Fiber, Human	724γ, Kα=15.775	zirconia recycling
41	Nb	superconductors, capacitors	boutique	Q, Fiber, Human	766γ, Kα=16.615	capacitor loops
42	Mo	alloys, ⁹⁹Mo→Tc	isotope trade	Fiber, Human	140γ, Kα=17.479	generator returns
43	Tc	imaging (⁹⁹ᵐTc)	hospital chain	Fiber, Human	140γ, Kα=18.349	generator loops
44	Ru	catalysts, chips	PGM	Opt, Fiber, Human	497γ, Kα=19.279	catalyst reclaim
45	Rh	autocats, optics	volatile	RF, Human	356/697γ, Kα=20.216	catalyst recycle
46	Pd	catalysts, fuel cells	auto/fuel cell	Fiber, Human	weak γ, Kα=21.179	catalyst recovery
47	Ag	PV, electronics	COMEX/LME	Fiber, Opt, Human	658γ, Kα=22.162	e-waste recovery
48	Cd	PV, NiCd	restricted	Fiber, Human	88γ, Kα=23.173	PV/NiCd loops
49	In	ITO, LEDs	by-product	Opt, Fiber, Human	171/245γ, Kα=24.209	display recycle
50	Sn	solder, bronze	LME	Fiber, Human	392γ, Kα=25.271	solder recovery
51	Sb	flame retardants	concentrated	RF, Human	602/1691γ, Kα=26.359	Pb–Sb battery loops
52	Te	CdTe PV, thermo	Cu refining	Fiber, Opt, Human	159γ, Kα=27.472	PV panel recycle
53	I	medicine, disinfectants	salts	Fiber, Human	364γ, Kα=28.612	isotope recycling
54	Xe	propulsion, imaging	ASU	Sat, Opt, Human	81γ, Kα=29.779	Xe recovery
55	Cs	clocks, ¹³⁷Cs γ	standards	Q, Fiber, Human	662γ, Kα=30.973	sealed-source loops
56	Ba	contrast, ceramics	barite	Fiber, Human	356γ, Kα=32.193	barite/contrast recycling
57	La	optics, catalysts	REE basket	Opt, Fiber, Human	1596γ, Kα=33.442	catalyst recovery
58	Ce	polishing, catalysts	REE driver	RF, Human	145γ, Kα=34.717	catalyst loops
59	Pr	magnets, lasers	Nd–Pr chain	Sat, Opt, Human	312γ, Kα=36.030	magnet recycling
60	Nd	magnets, lasers	EV/turbines	Fiber, RF, Opt, Human	—, Kα=37.346	magnet loops
61	Pm	beta batteries	synthetic	RF, Human	β (¹⁴⁷Pm), Kα=38.609	sealed-source loops
62	Sm	magnets, therapy	REE basket	RF, Opt, Human	103γ, Kα=40.120	magnet recycling
63	Eu	phosphors, calibration	lighting	Opt, Fiber, Human	121/344γ, Kα=41.540	phosphor recycling
64	Gd	MRI, shielding	REE med	Opt, Human	103γ, Kα=42.996	MRI contrast recovery
65	Tb	phosphors, lasers	REE critical	Opt, Fiber, Human	298γ, Kα=44.466	phosphor loops
66	Dy	high-temp magnets	EV/turbine	RF, Human	weak, Kα=45.914	magnet recycling
67	Ho	lasers, control rods	niche	Opt, Human	133γ, Kα=47.355	optical scrap
68	Er	EDFAs, lasers	telecom	Fiber, Opt, Human	109/198γ, Kα=48.814	fiber recovery
69	Tm	lasers, lamps	rare	Opt, Human	84/300γ, Kα=50.470	lamp recycling
70	Yb	lasers, clocks	optics	Q, Fiber, Human	63/177γ, Kα=52.041	clock isotope loops
71	Lu	radiotherapy, PET	isotope market	Fiber, Human	113/208γ, Kα=53.615	generator loops
72	Hf	control rods, high-k	tied to Zr	Fiber, Human	482γ, Kα=55.199	rod recycling
73	Ta	capacitors, alloys	conflict mineral	RF, Human	67/1221γ, Kα=57.533	capacitor loops
74	W	alloys, filaments	defense	RF, Sat, Human	686γ, Kα=59.318	scrap recovery
75	Re	superalloys, therapy	scarce	Sat, Human	137γ, Kα=61.140	alloy/catalyst recovery
76	Os	alloys, probes	rare	Opt, Human	129γ, Kα=63.087	catalyst reclaim
77	Ir	plugs, ¹⁹²Ir γ	PGM	RF, Sat, Human	316/468/605γ, Kα=64.987	sealed-source recycling
78	Pt	catalysts, fuel cells	traded	Fiber, Human	weak, Kα=66.832	catalyst loops
79	Au	electronics, finance	COMEX	Fiber, Opt, Human	412γ, Kα=68.804	e-waste Au
80	Hg	lamps, sensors	restricted	Human, Sat	279γ, Kα=70.816	Hg collection
81	Tl	detectors, imaging	isotope niche	Opt, Fiber, Human	135/167γ, Kα=72.871	isotope reclaim
82	Pb	batteries, shielding	traded	RF, Human	46.5γ, Kα=74.969	closed battery loops
83	Bi	alloys, α therapy	refining by-product	Human, Fiber	609/1764γ, Kα=77.108	isotope recovery
84	Po	RTGs	reactor product	Sat, Human	α dominant, Kα=78.400	sealed-source loops
85	At	α therapy	cyclotron	Fiber, Human	weak, Kα=80.400	isotope loops
86	Rn	tracer, hazard	none	Sat, Human	295/352/609γ, Kα=81.900	remediation loops
87	Fr	research	none	Q, Human	weak, Kα=83.800	n/a
88	Ra	historic therapy	none	Human, RF	186γ, Kα=85.900	sealed-source
89	Ac	α therapy	isotope demand	Fiber, Human	911γ, Kα=87.900	generator recovery
90	Th	MSR fuel	strategic	Fiber, Sat, Human	238/2615γ, Kα=93.350	fuel cycle closure
91	Pa	dating	none	Human, Fiber	312γ, Kα=98.920	geochronology loops
92	U	nuclear fuel	U₃O₈ traded	Sat, Fiber, Human	1001γ, Kα=98.439	MOX, reproc.
93	Np	Pu precursor	controlled	Human, Fiber	106γ, theor. Kα	partition/recycle
94	Pu	fuel, RTGs	defense locked	Sat, Human	51.6/375γ, theor. Kα	MOX cycles
95	Am	smoke detectors	niche	Human, RF	59.5γ, theor. Kα	sealed-source
96	Cm	neutron source	lab	Sat, Human	333γ, theor. Kα	isotope loops
97	Bk	superheavy target	lab	Human	weak, theor. Kα	none
98	Cf	neutron source	reactor	RF, Human	fission γ, theor. Kα	sealed-source loops
99	Es	superheavy target	lab	Human	~150γ, theor. Kα	none
100	Fm	research	lab	Human	weak γ, theor. Kα	none
101	Md	nuclear research	lab	Human	269γ, theor. Kα	none
102	No	nuclear research	lab	Human	347γ, theor. Kα	none
103	Lr	atomic studies	lab	Human	251γ, theor. Kα	none
104	Rf	group-4 analog	lab	Human	298γ, theor. Kα	none
105	Db	group-5 analog	lab	Human	346γ, theor. Kα	none
106	Sg	group-6 analog	lab	Human	327γ, theor. Kα	none
107	Bh	group-7 analog	lab	Human	347γ, theor. Kα	none
108	Hs	noble-metal analog	lab	Human	350γ, theor. Kα	none
109	Mt	group-9 analog	lab	Human	344γ, theor. Kα	none
110	Ds	Pt-group analog	lab	Human	348γ, theor. Kα	none
111	Rg	Au analog	lab	Human	350γ, theor. Kα	none
112	Cn	Hg analog	lab	Human	356γ, theor. Kα	none
113	Nh	Tl analog	lab	Human	360γ, theor. Kα	none
114	Fl	Pb analog	lab	Human	365γ, theor. Kα	none
115	Mc	Bi analog	lab	Human	370γ, theor. Kα	none
116	Lv	Po analog	lab	Human	375γ, theor. Kα	none
117	Ts	halogen analog	lab	Human	380γ, theor. Kα	none
118	Og	noble gas analog	lab	Human	385γ, theor. Kα	none