Aluminum-Induced Entropy in Biological Systems: Implications for Neurological Disease

Table 3

A comparison of the physical properties of metallic Al with those of its common competitors in biological systems [89]. Crystal ionic radius source: [92]. Magnetic susceptibilities source: [47, pp. 4-131 to 4-136]. Viscosity coefficient source: [93]. Standard molar electrostriction volume source [94].

	Mg	Al	Ca	Mn	Fe	Co	Zn
Atomic number	12	13	20	24	25	27	30
Electron configuration	Ne3s^2	Ne3s^23p^1	Ar4s^2	Ar4s^23d^5	Ar4s^23d^6	Ar4s^23d^7	Ar4s^23d^10
Ionization energies (kJ/mol)	737.7; 1450.7	577.5; 1816.7; 2744.8	589.8; 1145.4	717.3; 1509	762.6; 1561.9	760.4; 1648	906.4; 1733.3
Crystal ionic radius (pm)	86	67.5	114	97	92	135	88
Electron affinity (kJ/mol)	0	42.5	2.37	0	15.7	63.7	0
Electronegativity (eV)	1.31	1.61	1.0	1.55	1.83	1.88	1.65
Magnetic susceptibility; (/10^−6 cm^3 mol^−1)	+13.1	+16.5	+40	+511	Ferro-magnetic	Ferro magnetic	−9.15
Charge density (coulombs·mm^−1)	120.1	372.6	51.6	143.7	98.1	154.9	112.1
Viscosity Coefficient; (dm^3 mol^−1, 298.15 K)	0.385	0.75	0.289	0.390	0.42	0.376	0.361
Standard molar electrostriction volume ()/(cm^3 mol^−1)	52.5	59.3	38.5	30.7	—	38.5	—