wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Which of the following relation is correct with respect to Ist and 2nd Ionization energy of Sodium and Magnesium?

A
IMg=IINa
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
INa>IIMg
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
IIMg>IINa
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
IINa>IIMg
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct option is D IINa>IIMg
Electronic configuratin of Na = 1s22s22p63s1
Electronic configuratin of Mg = 1s22s22p63s2
Ist Ionization energy of sodium will be less than magnesium.
As we move across the period, the number of valence electrons in an atom increases and also nuclear charge increases which tend to decrease the radius and ionization energy increases.
When an electron is removed from Na, it acquires noble gas configuration which is more stable and removing electron requires more energy.
IINa>IIMg


flag
Suggest Corrections
thumbs-up
2
Join BYJU'S Learning Program
Join BYJU'S Learning Program
CrossIcon