Chemistry
Grade-9
Easy

Question

Choose the correct statement.

  1. The vertical column in the periodic table is called a period.
  2. The vertical column in the periodic table is called a group.
  3. The horizontal row in the periodic table is not called a period.
  4. None of the above

hintHint:

There are 18 groups in periodic table.

The correct answer is: The vertical column in the periodic table is called a group.


    • Modern day periodic was discovered by Mendeleev.
    • In the periodic table there are 118 elements arranged in 18 groups and 7 periods.
    • The vertical columns in the periodic table are called groups.
    • The horizontal rows in the periodic table are called periods.

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