Question

The incorrect statement among the following is

Solution

Correct option is

The second ionisation potential of Mg is greater than the second ionisation potential of Na

 

IE (II) of Na is higher than that of Mg because in case of Na, the second ehas to be removed from the noble gas core while in case of Mg removal of second e gives a noble gas core. 

Mg has high first ionisation potential than Na because of its stable ns2configuration.

SIMILAR QUESTIONS

Q1

The elements XYZ and T have the indicated electronic configurations. Starting with the innermost shell, which is the most metallic element?   

Q2

The statement that is the true for the long form of the Periodic Table is   

Q3

The radii F, F, O and O2– are in the order of    

Q4

Which has the smallest size?

Q5

The correct order of radii is

Q6

The correct order of ionic radius is

Q7

The bond length or LiF will be

Q8

The ionic radius of ‘Cr’ is minimum in which of the following compounds?

Q9

Which ionisation potential (IP) in the following equations involves the greater amount of energy?

Q10

The first four ionisation energy values of an element are 191, 578, 872 and 5962 kcal. The number of valence electrons in the element is