CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Which of the following has highest atomic radius?


A

Br-

No worries! We‘ve got your back. Try BYJU‘S free classes today!
B

Cl-

No worries! We‘ve got your back. Try BYJU‘S free classes today!
C

I-

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D

F-

No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C

I-


Explanation for the correct option:

(c ) I-

  • Because the number of protons and neutrons increases down a group, thus the size of the nucleus grows-
  • Furthermore, with each period, more energy levels are added. As a result, the orbital is larger, and hence the atomic radius is larger.
  • I- has largest radius.
  • F-<Cl-<Br-<I-
  • Hence this option is correct

Explanation for the incorrect options:

(a) Br-

  • Because the number of protons and neutrons increases down a group
  • F-<Cl-<Br-<I-
  • Br-has less radius than that of I-.
  • Thus, this option is incorrect.

(b) Cl-

  • Because the number of protons and neutrons increases down a group
  • F-<Cl-<Br-<I-
  • Cl-has less radius than that of I- and Br-
  • Thus, this option is incorrect.

(d) F-

  • Because the number of protons and neutrons increases down a group
  • F-<Cl-<Br-<I-
  • F-has less radius than that of I-. Br-and Cl-
  • Thus, this option is incorrect.

Hence the correct option is (c ) I-


flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Neil Bohr Model
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon