A radioactive element X emits six α-particles and four β-particles leading to end product 82208 P b . X is

Question

A radioactive element X emits six α-particles and four β-particles leading to end product 82208 P b . X is (A)  92238 U (B)  90230 Th (C)  90232 Th (D)  92239 U

Tardigrade Admin · Accepted Answer

Calculating Zx=82+6 × 2-4 =90 Ax=208+6 × 4=232

Q. A radioactive element $X$ emits six $α$ -particles and four $β$ -particles leading to end product $_{82}^{208} P b . X$ is

$_{92}^{238} U$

$_{90}^{230} T h$

$_{90}^{232} T h$

$_{92}^{239} U$

Calculating $Z_{x} = 82 + 6 \times 2 - 4$
$= 90$
$A_{x} = 208 + 6 \times 4 = 232$

Q. A radioactive element X emits six α-particles and four β-particles leading to end product 82208​Pb.X is

92238​U

90230​Th

90232​Th

92239​U