JEE Exam  >  JEE Questions  >  By ignoring Aufbau principle, if each orbital... Start Learning for Free
By ignoring Aufbau principle, if each orbital accommodates three electrons instead of two, then the incorrect statement(s) about the new electronic arrangement of Zr atom having atomic number 40 is/are:

  • a)
    In the new periodic table, it would continue to belong to the 5th period.

  • b)
    Spin quantum number would overflow.

  • c)
    The number of s-electrons would equal the number of p-electrons.

  • d)
    All of the above.

Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
By ignoring Aufbau principle, if each orbital accommodates three elect...
According to the new rule, the electronic configuration is:
1s3, 2s3, 2p9, 3s3, 3p9, 4s3, 3d10
Thus, according to the new electronic configuration, Zr belongs to the 4th period of the periodic table.
Free Test
Community Answer
By ignoring Aufbau principle, if each orbital accommodates three elect...
Explanation:
- Aufbau principle states that electrons are filled in orbitals in increasing order of energy levels. Each orbital can accommodate a maximum of two electrons with opposite spins.
- If we ignore the Aufbau principle and assume that each orbital can accommodate three electrons, then the electronic configuration of Zr (atomic number 40) would be: 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 5d5 6s2.
- Let's analyze the given statements:

a) In the new periodic table, it would continue to belong to the 5th period.
- This statement is correct, as the period of an element is determined by the highest energy level that is filled with electrons. In this case, the highest energy level is the 5th level, and hence Zr would still belong to the 5th period.

b) Spin quantum number would overflow.
- This statement is incorrect. Spin quantum number (ms) can only have two values (+1/2 or -1/2) irrespective of the number of electrons in an orbital. It does not overflow.

c) The number of s-electrons would equal the number of p-electrons.
- This statement is incorrect. In the given electronic configuration, the number of s-electrons (10) is not equal to the number of p-electrons (6).

- Therefore, the correct answer is option 'A'.
Explore Courses for JEE exam

Similar JEE Doubts

By ignoring Aufbau principle, if each orbital accommodates three electrons instead of two, then the incorrect statement(s) about the new electronic arrangement of Zr atom having atomic number 40 is/are:a)In the new periodic table, it would continue to belong to the 5thperiod.b)Spin quantum number would overflow.c)The number of s-electrons would equal the number of p-electrons.d)All of the above.Correct answer is option 'D'. Can you explain this answer?
Question Description
By ignoring Aufbau principle, if each orbital accommodates three electrons instead of two, then the incorrect statement(s) about the new electronic arrangement of Zr atom having atomic number 40 is/are:a)In the new periodic table, it would continue to belong to the 5thperiod.b)Spin quantum number would overflow.c)The number of s-electrons would equal the number of p-electrons.d)All of the above.Correct answer is option 'D'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about By ignoring Aufbau principle, if each orbital accommodates three electrons instead of two, then the incorrect statement(s) about the new electronic arrangement of Zr atom having atomic number 40 is/are:a)In the new periodic table, it would continue to belong to the 5thperiod.b)Spin quantum number would overflow.c)The number of s-electrons would equal the number of p-electrons.d)All of the above.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for By ignoring Aufbau principle, if each orbital accommodates three electrons instead of two, then the incorrect statement(s) about the new electronic arrangement of Zr atom having atomic number 40 is/are:a)In the new periodic table, it would continue to belong to the 5thperiod.b)Spin quantum number would overflow.c)The number of s-electrons would equal the number of p-electrons.d)All of the above.Correct answer is option 'D'. Can you explain this answer?.
Solutions for By ignoring Aufbau principle, if each orbital accommodates three electrons instead of two, then the incorrect statement(s) about the new electronic arrangement of Zr atom having atomic number 40 is/are:a)In the new periodic table, it would continue to belong to the 5thperiod.b)Spin quantum number would overflow.c)The number of s-electrons would equal the number of p-electrons.d)All of the above.Correct answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for JEE. Download more important topics, notes, lectures and mock test series for JEE Exam by signing up for free.
Here you can find the meaning of By ignoring Aufbau principle, if each orbital accommodates three electrons instead of two, then the incorrect statement(s) about the new electronic arrangement of Zr atom having atomic number 40 is/are:a)In the new periodic table, it would continue to belong to the 5thperiod.b)Spin quantum number would overflow.c)The number of s-electrons would equal the number of p-electrons.d)All of the above.Correct answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of By ignoring Aufbau principle, if each orbital accommodates three electrons instead of two, then the incorrect statement(s) about the new electronic arrangement of Zr atom having atomic number 40 is/are:a)In the new periodic table, it would continue to belong to the 5thperiod.b)Spin quantum number would overflow.c)The number of s-electrons would equal the number of p-electrons.d)All of the above.Correct answer is option 'D'. Can you explain this answer?, a detailed solution for By ignoring Aufbau principle, if each orbital accommodates three electrons instead of two, then the incorrect statement(s) about the new electronic arrangement of Zr atom having atomic number 40 is/are:a)In the new periodic table, it would continue to belong to the 5thperiod.b)Spin quantum number would overflow.c)The number of s-electrons would equal the number of p-electrons.d)All of the above.Correct answer is option 'D'. Can you explain this answer? has been provided alongside types of By ignoring Aufbau principle, if each orbital accommodates three electrons instead of two, then the incorrect statement(s) about the new electronic arrangement of Zr atom having atomic number 40 is/are:a)In the new periodic table, it would continue to belong to the 5thperiod.b)Spin quantum number would overflow.c)The number of s-electrons would equal the number of p-electrons.d)All of the above.Correct answer is option 'D'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice By ignoring Aufbau principle, if each orbital accommodates three electrons instead of two, then the incorrect statement(s) about the new electronic arrangement of Zr atom having atomic number 40 is/are:a)In the new periodic table, it would continue to belong to the 5thperiod.b)Spin quantum number would overflow.c)The number of s-electrons would equal the number of p-electrons.d)All of the above.Correct answer is option 'D'. Can you explain this answer? tests, examples and also practice JEE tests.
Explore Courses for JEE exam

Top Courses for JEE

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev