Template:Iso1/Color coding

Half-lives
by letter code

example: Gd check also: title (mousehover text)
-	145Gd	< 1 day
V	146Gd	1–10 days
I	149Gd	10–100 days
B	153Gd	100 days–10 a
G	148Gd	10–10,000 a
Y	150Gd	10 ka–103 Ma
O	152Gd	> 700 Ma
R	158Gd	Stable

Half-lives
by number code

check also: title (mousehover text)
0		1-10 years
1		10-100 years
2		100-1k years
3		1k-10k years
4		10k-100k years
5		100k-1M years
6		1M-10M years
7		10M-103M years
8
9		700M-14G years