Author Question: Bismuth Bi is known to be radioactive. The stability of Bi with respect to alpha, beta-plus and ... (Read 136 times)

londonang · **on:** Oct 11, 2019

Question 1

The stability of

Cl with respect to alpha, beta-plus and beta-minus decay is to be determined. The following atomic masses are known:

He:	4.002603 u

P:	31.973907 u

S:	35.967081 u

Cl:	35.968307 u

Ar:	35.967546 u

The

Cl nucleus is
◦ subject to alpha decay only.
◦ not subject to alpha, beta-plus or beta-minus decay.
◦ subject to beta-plus decay only.
◦ subject to beta-plus or beta-minus decay, but not to alpha decay.
◦ subject to beta-minus decay only.

Question 2

Bismuth

Bi is known to be radioactive. The stability of

Bi with respect to alpha, beta-plus and beta-minus decay is to be determined. The following atomic masses are known:

He:	4.002603 u

Tl:	207.981998 u

Pb:	211.991871 u

Bi:	211.991255 u

Po:	211.988842 u

The

Bi nucleus is
◦ subject to beta-minus decay only.
◦ subject to beta-plus decay only.
◦ subject to alpha or beta-minus decay, but not beta-plus decay.
◦ subject to alpha decay only.
◦ subject to alpha or beta-plus decay, but not beta-minus decay.

bassamabas · **Reply #1 on:** Oct 11, 2019

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