How many rows and columbs are there in modern periodic table???

1.	How many rows and columbs are there in modern periodic table???
Answer» ANSWER: seven The elements are arranged in seven horizontal rows, called periods or series, and 18 vertical columns, called groups. Groups are LABELED at the top of each column. In the UNITED States, the labels TRADITIONALLY were numerals with capital letters. Explanation: thank you...

Answer»

seven

The elements are arranged in seven horizontal rows, called periods or series, and 18 vertical columns, called groups. Groups are LABELED at the top of each column. In the UNITED States, the labels TRADITIONALLY were numerals with capital letters.

Explanation:

thank you...

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How many rows and columbs are there in modern periodic table???​

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How many rows and columbs are there in modern periodic table???