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JEE Main 202524 JanuaryMorning Shift
Exam
JEE Main
Year
2025
Date
24 January
Shift
Morning Shift
Subject
Chemistry
Chapter
Classification of Elements and Periodicity in Properties

JEE Main 2025 · 24 January · Morning Shift · Chemistry · Classification of Elements and Periodicity in Properties

Which of the following statements are NOT true about the periodic...

Which of the following statements are NOT true about the periodic table? A. The properties of elements are function of atomic weights. B. The properties of elements are function of atomic numbers. C. Elements having similar outer electronic configurations are arranged in same period. D. An element's location reflects the quantum numbers of the last filled orbital. E. The number of elements in a period is same as the number of atomic orbitals available in energy level that is being filled. Choose the correct answer from the options given below:

Options

  1. AA,C\mathrm{A}, \mathrm{C} and E Only
  2. BA and E Only
  3. CB,C\mathrm{B}, \mathrm{C} and E Only
  4. DD and E Only

Correct answer

A. A,C\mathrm{A}, \mathrm{C} and E Only

Step-by-step solution

Properties of elements are function of atomic numbers. Elements having similar outer electronic configuration are arranged in same group. Number of elements in a period is double of number of atomic orbitals available in energy level that is being filled.
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