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Why is the seventh period of periodic table incomplete?

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Thanks for A2A. The seventh period of the Periodic Table is, in fact, NOT incomplete. If you found this question on an old book, it is outdated. The only incompleteness (a few years ago) was the IUPAC confirming and naming of the elements 113, 115, 117 and 118. read more

The seventh period of the Periodic Table is, in fact, NOT incomplete. If you found this question on an old book, it is outdated. The only incompleteness (a few years ago) was the IUPAC confirming and naming of the elements 113, 115, 117 and 118. read more

7 th period is considered as incomplete period even though it has 32 elements. Because it consists of elements whose properties have not been studied properly yet. Most of these elements have only been identified in labs. read more

The atoms of the elements in period 7 are very unstable. Most of the elements of this period can't be found in nature because of this fact. These need to be made in labs by nuclear reactions. read more

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