Chemistry
Grade-9
Easy
Question
The vertical rows on the periodic table are called ___________.
- Periods
- Sentences
- Fences
- 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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