|
On the basis of quantum numbers, justify that sixth period
|
|
2
|
1784
|
August 24, 2018
|
|
Predict the formulae of the stable binary compounds
|
|
1
|
3581
|
December 18, 2016
|
|
The first (∆iH1) and the second (∆iH2) ionisation enthalpies
|
|
1
|
3737
|
December 18, 2016
|
|
First member of each group of representative elements
|
|
1
|
5377
|
December 18, 2016
|
|
He increasing order of reactivity among group 1 elements
|
|
1
|
4321
|
December 18, 2016
|
|
Nitrogen has positive electron gain enthalpy
|
|
1
|
4050
|
December 18, 2016
|
|
Which one (atom/ion) in the following pairs has higher electron gain enthalpy?
|
|
1
|
2157
|
December 18, 2016
|
|
What is the significance of the terms
|
|
1
|
806
|
December 18, 2016
|
|
How do alkali and alkaline earth metals react with water?
|
|
0
|
1764
|
December 18, 2016
|
|
He electron gain enthalpy of bromine is 3.36 eV
|
|
1
|
4786
|
December 18, 2016
|
|
Which of the following pairs of elements
|
|
1
|
12575
|
December 18, 2016
|
|
Would you expect the second electron gain enthalpy of 0 as positive
|
|
1
|
1759
|
December 18, 2016
|
|
Give reason for the following questions
|
|
1
|
2909
|
December 18, 2016
|
|
Ionisation enthalpies of elements of second period are given below
|
|
1
|
3743
|
December 18, 2016
|
|
How would you explain this deviation from the general trend?
|
|
1
|
2058
|
December 18, 2016
|
|
Which element is more metallic Mg or Al and why?
|
|
1
|
3070
|
December 18, 2016
|
|
Consider the following species
|
|
1
|
791
|
December 18, 2016
|
|
What do you understand by isoelectronic species?
|
|
1
|
3453
|
December 18, 2016
|
|
For each of the following pairs
|
|
1
|
2955
|
December 18, 2016
|
|
How would you explain the fact that the first ionisation enthalpy of sodium
|
|
1
|
1205
|
December 18, 2016
|
|
Which of the elements Na, Mg, Si and P would have the greatest difference
|
|
1
|
1757
|
December 18, 2016
|
|
What are the various factors due to which the ionisation enthalpy
|
|
1
|
1114
|
December 18, 2016
|
|
Arrange the following in decreasing order
|
|
1
|
3593
|
December 18, 2016
|
|
Name the species that will be isoelectronic with the following atoms or ions
|
|
1
|
3190
|
December 18, 2016
|
|
Explain why cations are smaller and anions larger in radii
|
|
1
|
4232
|
December 18, 2016
|
|
List the factors that can influence the ionic radius of an element
|
|
0
|
7975
|
December 18, 2016
|
|
Use the periodic table to answer the following questions
|
|
1
|
2328
|
December 18, 2016
|
|
Ustify the given statement with suitable examples
|
|
1
|
2428
|
December 18, 2016
|
|
Can an element with atomic number 126
|
|
1
|
2047
|
December 18, 2016
|
|
Give the name and atomic number of the inert gas atom
|
|
1
|
5901
|
December 18, 2016
|