style="background:#ffffff;" title="Half-life – Isotope: < 1 day; Nuclear isomer: < 1 day" |
{{{1}}}{{{2}}}
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| see also: title (mousehover text)
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by letter code
| example: Gd
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| -
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145Gd
|
< 1 day
|
| V
|
146Gd
|
1–10 days
|
| I
|
149Gd
|
10–100 days
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| 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
|
| Used in:
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by number code
| 0
|
|
1–10 years
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| 1
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|
10–100 years
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| 2
|
|
100–1k years
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| 3
|
|
1k–10k years
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| 4
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|
10k–100k years
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| 5
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|
100k–1M years
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| 6
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|
1M–10M years
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| 7
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|
10M–103M years
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| 8
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|
103M–700M years
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| 9
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|
700M–14G years
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| Used in:
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