Check sibling questions

Which of these are pairs of isobar?

  1.   6 C 12 , 8 O 16
  2.   6 C 13 , 6 O 14
  3.   20 Ca 40 , 18 Ar 40
  4. None of these

 

Answer

C. 20 Ca 40 , 18 Ar 40

 

 

Explanation: Isobars are atoms of different elements. They have different atomic numbers but same mass numbers.

 

Here, Calcium and Argon are different elements with the same mass numbers and different atomic numbers. Hence they are isobars.

Introducing your new favourite teacher - Teachoo Black, at only ₹83 per month

CA Maninder Singh's photo - Expert in Practical Accounts, Taxation and Efiling

Made by

CA Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 12 years and a teacher from the past 16 years. He teaches Science, Accounts and English at Teachoo