there are______ horizontal rows and _____ vertical columns in morden periodic table
Answers
Answered by
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Answer: 7 horizontal rows, 18 vertical columns in the modern periodic table.
hope this helps you:)
Answered by
1
There are seven horizontal rows and eighteen vertical columns in morden periodic table.
Explanation:
- The elements are arranged in seven horizontal rows, called periods or series.
- And eighteen vertical columns, called groups.
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