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.
Alpha Centauri
This chart illustrates the “drip down” model of government. In this, politics is formed by the soc
Types of Radioactive Decay
Absolute Stability
Differentiate each function with respect to x. (Power rule)
Which reaction below represents Th decay by alpha emission?