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Question

What are groups and periods in the periodic table?


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Solution

Periodic Table

  • The periodic table involves 18 vertical columns and 7 horizontal rows.
  • The horizontal rows are referred to as periods.
  • The vertical columns are referred to as groups.

Examples

  • Boron, Carbon, and nitrogen are present in the same period, that is period number 2.
  • Sodium, Potassium, and Lithium are present in the same group, that is group number 1.

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