Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Which of the following statement is correct in regard to the classification of elements ?
(a) Elements in the periodic table are arranged on the basis of increasing atomic masses
(b) Elements in Mendeleev’s periodic table are arranged on the basis of increasing atomic numbers
(c) In modern periodic table, the element nickel of lower atomic mass is kept before the element cobalt of higher atomic mass
(d) In modern periodic table, the isotopes of chlorine having diffrenet atomic masses are kept in the same group.
Correct answer: (d) In modern periodic table, the isotopes of chlorine having diffrenet atomic masses are kept in the same group.
Explanation: The isotopes of chlorine, Cl-35 and Cl-37, having different atomic masses but same atomic numbers are kept in the same group in the modern periodic table.
Updated on: 10-Oct-2022
39 Views
Advertisements