A certain radioisotope of 23592U 92 235 U emits four alpha particles and three beta particles. The mass number and the atomic number of the resulting elemen...

Question 1 Report

A certain radioisotope of $_{92}^{235} U$ emits four alpha particles and three beta particles. The mass number and the atomic number of the resulting elements respectively are

219 and 87

84 and 223

223 and 87

219 and 81

Answer Details

$_{92}^{235} U$ $\to$ 4 $(_{2}^{4} α)$ + 3 $(_{- 1}^{0} e)$ + $_{a}^{b} y$

a + (4 + 2) + (3x - 1) = 92 $\Rightarrow$ a = 87

b + (4 x 4) + (3 x 0) = 235 $\Rightarrow$ b = 219

$_{a}^{b} Y$ = $_{87}^{219} Y$

Read lesson note on Structure Of The Atom (Nigeria Only) (WAEC)

Structure Of The Atom (Nigeria Only)

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