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Evolution of chemical compositions from solar
nebula to the human brain
Yuan-hui (Telu) Li
Chapter 2
The solar nebula and nucleosynthesis
Ar
Ne
H
He
Kr
Xe
OC
N Si MgFeS
AlCa NaNi
CrCl
Ge
Li
In
WHg
TbU
GaBRb
Ho
Mn
even Z
odd Z
Types A Z N Stable Unstable
even-ZN even even even 167 631
odd-ZN even odd odd 9#1 783
odd-AN odd even odd 57 738
odd-AZ odd odd even 53 740
Total 286 2892
#1: truly stable NBLiH 14
7
10
5
6
3
2
1 ,,,
and semi-stable TaandLuLaVK m180
73
176
71
138
57
50
23
40
19 ,,,,.
Members perfamily
1 2 3 4 5 6 7 8 9 10
Isobaric odd-A 100 5#
family even-A 41 54 9
Isotopic odd-Z 21 19 1
family even-Z 2 3 5 6 6 7 10 2 1 1
Isotonic odd-N 48 9
family even-N 5
6 28 19 6 1 1
#: Pairs are SrRb 87
38
87*
37 ~ , InCd 113
49
113*
48 ~ , SnIn 115
50
115*
49 ~ , TeSb 123*
52
123
51 ~ , and
Os187
76
187*
75 Re~
.
12
4
16
20 2428
32 36 40
4
139
18 2226
30
34
3640 44
