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Question

Which of the following statements about the Modern Periodic Table is correct?


A

It has 18 horizontal rows known as Periods

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B

It has 7 vertical columns known as Periods

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C

It has 18 vertical columns known as Groups

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D

It has 7 horizontal rows known as Groups

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Solution

The correct option is C

It has 18 vertical columns known as Groups


Explanation for the correct options:

(C)It has 18 vertical columns known as Groups.

  • In the modern periodic table, the columns are known as groups.
  • There are 18 vertical groups are there in the periodic table.
  • Elements from the same groups have similar chemical characteristics.

Explanation for the incorrect options:

(A)It has 18 horizontal rows known as Periods.

  • The modern periodic table has 7 horizontal rows which are known as periods.

(B)It has 7 vertical columns known as Periods.

  • The modern periodic table has 18 vertical columns known as groups.

(D)It has 7 horizontal rows known as Groups.

  • The modern periodic table has 7 horizontal rows known as periods.

Hence, option (C) is correct, It has 18 vertical columns known as groups is a correct statement about the Modern Periodic Table.


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