Descending Nuclear Stability

Below is the sorted list of nuclear stability of basic elements, in descending order.

Elements		Z	Density	Density/Z
Boron	B	5	2.34	4.6800E-001
Beryllium	Be	4	1.848	4.6200E-001
Carbon	C	6	2.26	3.7667E-001
Cobalt	Co	27	8.9	3.2963E-001
Nickel	Ni	28	8.9	3.1786E-001
Copper	Cu	29	8.96	3.0897E-001
Iron	Fe	26	7.874	3.0285E-001
Chromium	Cr	24	7.19	2.9958E-001
Osmium	Os	76	22.6	2.9737E-001
Manganese	Mn	25	7.43	2.9720E-001
Iridium	Ir	77	22.4	2.9091E-001
Ruthenium	Ru	44	12.37	2.8114E-001
Rhenium	Re	75	21.04	2.8053E-001
Rhodium	Rh	45	12.41	2.7578E-001
Platinum	Pt	78	21.45	2.7500E-001
Technetium	Tc	43	11.5	2.6744E-001
Vanadium	V	23	6.11	2.6565E-001
Tungsten	W	74	19.35	2.6149E-001
Palladium	Pd	46	12.02	2.6130E-001
Gold	Au	79	19.32	2.4456E-001
Molybdenum	Mo	42	10.22	2.4333E-001
Zinc	Zn	30	7.13	2.3767E-001
Tantalum	Ta	73	16.65	2.2808E-001
Silver	Ag	47	10.5	2.2340E-001
Neptunium	Np	93	20.2	2.1720E-001
Plutonium	Pu	94	19.84	2.1106E-001
Niobium	Nb	41	8.57	2.0902E-001
Aluminum	Al	13	2.702	2.0785E-001
Titanium	Ti	22	4.54	2.0636E-001
Uranium	U	92	18.95	2.0598E-001
Gallium	Ga	31	5.907	1.9055E-001
Hafnium	Hf	72	13.31	1.8486E-001
Cadmium	Cd	48	8.65	1.8021E-001
Lithium	Li	3	0.534	1.7800E-001
Arsenic	As	33	5.72	1.7333E-001
Mercury	Hg	80	13.546	1.6933E-001
Protactinium	Pa	91	15.4	1.6923E-001
Silicon	Si	14	2.33	1.6643E-001
Germanium	Ge	32	5.323	1.6634E-001
Zirconium	Zr	40	6.51	1.6275E-001
Californium	Cf	98	15.1	1.5408E-001
Berkelium	Bk	97	14.78	1.5237E-001
Indium	In	49	7.31	1.4918E-001
Thallium	Tl	81	11.85	1.4630E-001
Tin	Sn	50	7.31	1.4620E-001
Magnesium	Mg	12	1.738	1.4483E-001
Americium	Am	95	13.67	1.4389E-001
Scandium	Sc	21	2.99	1.4238E-001
Selenium	Se	34	4.79	1.4088E-001
Curium	Cm	96	13.5	1.4063E-001
Lutetium	Lu	71	9.84	1.3859E-001
Lead	Pb	82	11.35	1.3841E-001
Thulium	Tm	69	9.32	1.3507E-001
Erbium	Er	68	9.07	1.3338E-001
Holmium	Ho	67	8.8	1.3134E-001
Antimony	Sb	51	6.684	1.3106E-001
Thorium	Th	90	11.724	1.3027E-001
Dysprosium	Dy	66	8.55	1.2955E-001
Sulfur	S	16	2.07	1.2938E-001
Terbium	Tb	65	8.23	1.2662E-001
Gadolinium	Gd	64	7.895	1.2336E-001
Phosphorus	P	15	1.82	1.2133E-001
Samarium	Sm	62	7.52	1.2129E-001
Tellurium	Te	52	6.24	1.2000E-001
Promethium	Pm	61	7.3	1.1967E-001
Bismuth	Bi	83	9.75	1.1747E-001
Neodymium	Nd	60	7.01	1.1683E-001
Cerium	Ce	58	6.77	1.1672E-001
Praseodymium	Pr	59	6.77	1.1475E-001
Yttrium	Y	39	4.47	1.1462E-001
Actinium	Ac	89	10.07	1.1315E-001
Polonium	Po	84	9.3	1.1071E-001
Lanthanum	La	57	6.15	1.0789E-001
Ytterbium	Yb	70	6.9	9.8571E-002
Iodine	I	53	4.93	9.3019E-002
Bromine	Br	35	3.119	8.9114E-002
Sodium	Na	11	0.971	8.8273E-002
Europium	Eu	63	5.24	8.3175E-002
Calcium	Ca	20	1.55	7.7500E-002
Astatine	At	85	6.35	7.4706E-002
Strontium	Sr	38	2.54	6.6842E-002
Barium	Ba	56	3.59	6.4107E-002
Radium	Ra	88	5.5	6.2500E-002
Potassium	K	19	0.862	4.5368E-002
Rubidium	Rb	37	1.63	4.4054E-002
Cesium	Cs	55	1.873	3.4055E-002
Francium	Fr	87	2.90E+000	3.3333E-002
Chlorine	Cl	17	3.21E-003	1.8906E-004
Fluorine	F	9	1.70E-003	1.8844E-004
Nitrogen	N	7	1.25E-003	1.7866E-004
Oxygen	O	8	1.43E-003	1.7863E-004
Radon	Rn	86	9.73E-003	1.1314E-004
Xenon	Xe	54	5.90E-003	1.0926E-004
Krypton	Kr	36	3.75E-003	1.0417E-004
Argon	Ar	18	1.78E-003	9.9022E-005
Neon	Ne	10	9.00E-004	9.0000E-005
Hydrogen	H	1	8.99E-005	8.9900E-005
Helium	He	2	1.79E-004	8.9250E-005

Notice that Helium \(He\), is the most unstable. A Helium \(He\) boom bomb is more likely than a Hydrogen \(H\) boom bomb.  The difference is small.

Have a bombastic day.