Home
Class 11
CHEMISTRY
How would you justify the presence of 18...

How would you justify the presence of 18 elements in the `5^("th")` period of the Periodic Table?

Text Solution

Verified by Experts

When `n = 5, l = 0, 1, 2, 3` and `4`. The order in which the enery of the available orbitals `4d, 5s` and `5p` increases in `5s lt 4d lt 5p`. The total number of orbitals available is `9`. The maximum number of electrons that can be accommodated is `18`, and therefore `18` elements are there in the `5th` period.
Promotional Banner

Topper's Solved these Questions

  • PERIODIC CLASSIFICATION OF ELEMENTS AND GENERAL INORGANIC CHEMISTRY

    CENGAGE CHEMISTRY ENGLISH|Exercise Solved Examples|34 Videos

  • PERIODIC CLASSIFICATION OF ELEMENTS AND GENERAL INORGANIC CHEMISTRY

    CENGAGE CHEMISTRY ENGLISH|Exercise Ex 1.1|14 Videos

  • P-BLOCK GROUP 14 - CARBON FAMILY

    CENGAGE CHEMISTRY ENGLISH|Exercise Exercises Archives (Subjective)|9 Videos

  • PURIFICATION OF ORGANIC COMPOUNDS AND QUALITATIVE AND QUANTITATIVE ANALYSIS

    CENGAGE CHEMISTRY ENGLISH|Exercise Assertion Reasoning Type|5 Videos

Similar Questions

Explore conceptually related problems

How would you justify the presence of 18 elements in the 5th period of the Periodic Table?

How would you justify the presence of 18 elements in the 5th period of the periodic table?

What is the number of elements in the 1^(st) period of the modern periodic table ?

What is the number of elements in the 3^(rd) period of the modern periodic table ?

The number of elements in the 4th period of periodic table is

The total number of elements in period 3 of the periodic table is:

What is the total no. of elements in shortest period of modern periodic table

Total number of elements present in 5 th period of modern periodic table is

Which of the following pair of elements belongs period of the periodic table ?

Name or state the following with reference to the elements of the first three periods of the periodic table. Alkaline earth metal in Period 3.