-
Engineering and Architecture
Exams
Colleges
Predictors
Resources
-
Computer Application and IT
Quick Links
Colleges
-
Pharmacy
Colleges
Resources
-
Hospitality and Tourism
Colleges
Resources
Diploma Colleges
-
Competition
Other Exams
Resources
-
School
Exams
Top Schools
Products & Resources
-
Study Abroad
Top Countries
Resources
-
Arts, Commerce & Sciences
Colleges
Upcoming Events
Resources
-
Management and Business Administration
Exams
Colleges & Courses
Predictors
-
Learn
Law Preparation
MBA Preparation
Engineering Preparation
Medical Preparation
-
Online Courses and Certifications
Top Streams
Specializations
- Digital Marketing Certification Courses
- Cyber Security Certification Courses
- Artificial Intelligence Certification Courses
- Business Analytics Certification Courses
- Data Science Certification Courses
- Cloud Computing Certification Courses
- Machine Learning Certification Courses
- View All Certification Courses
Resources
-
Medicine and Allied Sciences
Colleges
Predictors
Resources
-
Law
Resources
Colleges
-
Animation and Design
Exams
Predictors & Articles
Colleges
Resources
-
Media, Mass Communication and Journalism
Colleges
Resources
-
Finance & Accounts
Top Courses & Careers
Colleges
Get Answers to all your Questions
- Home
- Engineering
- Statement I: The ionisation enthalpies of lanthanoids are less than that of actinoid Statement II: 5f orbitals are less attracted towards the nucleus than 4f-orbitals. <d
Statement I: The ionisation enthalpies of lanthanoids are less than that of actinoid
Statement II: 5f orbitals are less attracted towards the nucleus than 4f-orbitals.
Both the statements are correct.
Both the statements are incorrect.
Statement I is correct and statement II is incorrect.
Statement II is correct and Statement I is incorrect.
Answers (1)
The ionisation enthalpies of actinoids are less than that of lanthanoids because of the loosely bound 5f orbitals. In case of lanthanoids the 4f orbitals are deeply buried inside the atom, so it is difficult to pull out an electron from 4f orbitals than 5f orbitals.
JEE Main high-scoring chapters and topics
Study 40% syllabus and score up to 100% marks in JEE
Similar Questions
-
5 g of Na2SO4 was dissolved in x g of H2O. The change in freezing point was found to be 3.820C. If Na2SO4 is 81.5% ionised, the value of x (K
A capacitor is made of two square plates each of side 'a' making a very small angle
-
A solution of m-chloroaniline, m-chlorophenol and m-chlorobenzoic acid in ethyl acetate was extracted initially with a saturated solution of NaHCO3 to give fraction A. The leftover organic phase was extracted with d
