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

The ions O2, F, Na+,Mg2+ and Al3+ are isoelectronic. Their ionic radii show:

A
A significant decrease from O2 to Al3+
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
A decrease from O2 to F and then increase from Na+ toAl3+
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
A significant increase from O2 to Al3+
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
An increase from O2 to F and then decrease from Na+ to Al3+
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A A significant decrease from O2 to Al3+
Amongst isoelectronic ions, ionic radii of anions is more than that of cations. Further size of the anion increases with increase in –ve charge and size of cation decreases with increase in +ve charge. Hence, correct order is O2>F>Na+>Mg2+>Al3+.

flag
Suggest Corrections
thumbs-up
7
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Size of an Atom or Ion
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon