49K
48K
33Ar
39P
34Al
32Mg
31Mg
33Na
32Na
27Ne
13O
17C
17B
15B
14B
14Be
12Be
11Li
First observed decay:
145Cs þ
146Cs þ
98Sr þ
99Rb þ
41Ti p
37Ca p
33Ar p
32Na þ
13O p
8He n
First mass measurement:
32Na
31Na
30Na
29Na
28Na
27Na
11Li
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