*E x1018   M x106   µ x10-6 ... *=3.14159   1erg=10-7J ... *H He Li Be B C O N F Ne ... *Th>Ra>Ac>Th>Ra>Rn>Po... *A .-   B ..-   C -.-.   D ..-   E . *Nord Norden Norte North * ... *Beaufort   F1 F2 F3 F4 F5 ... *Cambrian Ordovician ... * *sin(x) cos(x2) tan(3x) ... *sinh(x) cosh(x2) tanh(3x) ... *=1+½+¼+... =1+1/2!+1/3!... *    ex=   sin-1x= ... *logxn=   logexn= e2x= ... *x2+y2=1   E=mc2   A=r2 ... *x2+y2=1   E=mc2   A=r2 ... * * DigitalDan.eu

A Z ... / T½ 232 90 Th 1.4 x1010 x60x60x24x365¼ 228 88 Ra 6.7 x60x60x24x365¼ 228 89 Ac 6.1 x60x60 228 90 Th 1.9 x60x60x24x365¼ 224 88 Ra 3.6 x60x60x24 220 86 Rn 55 216 84 Po 3.0 x10-7 212 82 Pb 10.6 x60x60 212 83 Bi 1 2 60.6 x60 208 80 1Tl 3.1 x60 212 84 2Po 25 208 82 Pb -   238 92 U 4.5x109 x60x60x24x365¼ 234 90 Th 24 x60x60x24 234 91 Pa 6.7 x60x60 234 92 U 2.4x105 x60x60x24x365¼ 230 90 Th 8x104 x60x60x24x365¼ 226 88 Ra 1.6x103 x60x60x24x365¼ 222 86 Rn 3.8 x60x60x24 218 84 Po 3.1 x60 214 82 Pb 27 x60 214 83 Bi 1 2 20 x60 210 81 1Tl 1.8 x60 214 84 2Po 1.6x10-4 210 82 Pb 20 x60x60x24x365¼ 210 83 Bi 5.0 x60x60x24 206 81 Tl 4.2 x60 206 82 Pb -   235 92 U 7.1x108 x60x60x24x365¼ 231 90 Th 26 x60x60 231 91 Pa 3.2x104 x60x60x24x365¼ 227 89 Ac 22 x60x60x24x365¼ 227 90 Th 18 x60x60x24 223 88 Ra 11 x60x60x24 219 86 Rn 4 215 84 Po 1.8x10-3 211 82 Pb 36 x60 211 83 Bi 2.2 x60 207 81 Tl 4.8 x60 207 82 Pb -