The atomic wt. of uranium is 238 and its atomic number 92. In course of its radioactive disintegration 8`alpha` and 6`beta` particles are emitted, the atomic wt. and atomic no, of the resultant atoms are
At. wt. 224 At. no. 80
At. wt. 230 At. no. 76
At. wt. 206 At. no. 76
At. wt. 206 At. no. 82