Science, asked by mjbdoroja, 14 days ago

Which of the following refers to the 7 horizontal rows in the periodic table?

Answers

Answered by shainazsangam

Answer:

In the periodic table of elements, there are seven horizontal rows of elements called periods. The vertical columns of elements are called groups, or families.

Answered by alphymus

Hey !

Answer:

Periods are the 7 horizontal rows ,

Groups are the 18 vertical columns .

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