Question

Atoms ${}_6{C}^{13}$ and ${}_8{O}^{17}$ are related to each other as :

• A. isotones
• B. isoelectronic
• C. isodiaphers
• D. isosters

Answer 1

Answer: (C)

isodiaphers

Atom's ${}_6{C}^{13}$ and ${}_8{O}^{17}$ are related to each other as Isodiapher's. They have same isotopic number (isotopic excess).
The isotopic number is the difference between the number of neutrons and the number of protons. It is equal to N-Z.
For ${}_6{C}^{13}$,
The number of neutrons is $13-6=7$.
The number of protons is 6.
The isotopic number is $7-6=1$.
For ${}_8{O}^{17}$,
The number of neutrons is $17-8=9$.
The number of protons is 8.
The isotopic number is $9-8=1$.