I think, my friends, that it depends altogether upon that of which one is afraid. The words of our text (Mt. 10:28), with the solemn inculcation of fear, are also a ringing denunciation of fear: the 'Fear Him' is balanced by 'Fear not.' The fear of God is here made a way of overcoming the fear of man. And the heroic centuries of Christian history have provided abundant testimony to its efficaciousness.
Gresham Machen

Table 2 Residency Part 8

Table 2 Residency Part 8

TABLE II Residency Periods for Chemicals in Ocean Solution (in years) Lithium 2.0 x 10^7 Silver 2.1 x 10^6 Beryllium 150 Gadolinium 5.0 x 10^5 Sodium 2.6 x 10^8 Tin 1.0 x 10^5 Magnesium 4.5 x 10^7 Antimony 3.5 x 10^5 Aluminum 100 Cesium 4.0 x 10^4 Silicon 8.0 x 10^3 Barium 8.4 x 10^4 Potassium 1.1 x 10^7 Lanthanum 440 Calcium 8.0 x 10^6 Cerium 80 Scandium 5.6 x 10^3 Praeseodymium 320 Titanium 160 Neodymium 270 Vanadium 1.0 x 10^4 Samarium 180 Chromium 350 Europium 300 Manganese 1400 Gladolinium 260 Iron 140 Dysprosium 460 Cobalt 1.8 x 10^4 Holmium 530 Nickel 1.8 x 10^4 Erbium 690 Copper 5.0 x 10^4 Thulium 1800 Zinc 1.8 x 10^5 Ytterbium 530 Gallium 1.4 x 10^3 Lutetium 450 Germanium 7.0 x 10^3 Tungsten 10^3 Rubidium 2.7 x 10^5 Gold 5.6 x 10^5 Strontium 1.9 x 10^7 Mercury 4.2 x 10^4 Yttrium 7.5 x 10^3 Lead 2.0 x 10^3 Niobium 300 Bismuth 4.5 x 10^4 Molybdenum 5.0 x 10^5 Uranium 5.0 x 10^5 Thorium 350