Chemistry
Grade-9
Easy

Question

The vertical rows on the periodic table are called ___________.

  1. Periods
  2. Sentences
  3. Fences
  4. Groups

Hint:

Vertical rows are called period.

The correct answer is: Periods


    • The periodic table consists of 118 elements arranged in 18 groups 7 periods.
    • The horizontal rows on the periodic table are called groups.
    • The vertical rows on the periodic table are called periods.

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