टेम्पलेट:Periodic table (group 3)
| Group 3 in the periodic table | |||||||||
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alkaline earth metals ← → group 4
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| ↓ Period | |||||||||
| 4 |  21 Transition metal | ||||||||
| 5 |  39 Transition metal | ||||||||
| 6 |  57 Lanthanide | ||||||||
| 7 | Actinium (Ac*) 89 Actinide | ||||||||
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* Whether the elements lutetium (Lu) and lawrencium (Lr), in period 6 and 7, are in group 3 is disputed. The grouping used in this article places La and Ac in group 3, which is the most common form. For other groupings, see group 3 borders. | |||||||||
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