how many periods are in the periodic table?
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how many periods are in the periodic table?
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Answer:
There are currently seven complete periods in the periodic table, comprising the 118 known elements. Any new elements will be placed into an eighth period; see extended periodic table.
Answer:
seven
Explanation:
There are currently seven complete periods in the periodic table, comprising the 118 known elements. Any new elements will be placed into an eighth period; see extended periodic table.