|
On the basis of quantum numbers, justify that sixth period
|
|
2
|
1726
|
August 24, 2018
|
|
Predict the formulae of the stable binary compounds
|
|
1
|
3459
|
December 18, 2016
|
|
The first (∆iH1) and the second (∆iH2) ionisation enthalpies
|
|
1
|
3588
|
December 18, 2016
|
|
First member of each group of representative elements
|
|
1
|
5316
|
December 18, 2016
|
|
He increasing order of reactivity among group 1 elements
|
|
1
|
4248
|
December 18, 2016
|
|
Nitrogen has positive electron gain enthalpy
|
|
1
|
3984
|
December 18, 2016
|
|
Which one (atom/ion) in the following pairs has higher electron gain enthalpy?
|
|
1
|
2089
|
December 18, 2016
|
|
What is the significance of the terms
|
|
1
|
753
|
December 18, 2016
|
|
How do alkali and alkaline earth metals react with water?
|
|
0
|
1707
|
December 18, 2016
|
|
He electron gain enthalpy of bromine is 3.36 eV
|
|
1
|
4582
|
December 18, 2016
|
|
Which of the following pairs of elements
|
|
1
|
12520
|
December 18, 2016
|
|
Would you expect the second electron gain enthalpy of 0 as positive
|
|
1
|
1699
|
December 18, 2016
|
|
Give reason for the following questions
|
|
1
|
2830
|
December 18, 2016
|
|
Ionisation enthalpies of elements of second period are given below
|
|
1
|
3628
|
December 18, 2016
|
|
How would you explain this deviation from the general trend?
|
|
1
|
2005
|
December 18, 2016
|
|
Which element is more metallic Mg or Al and why?
|
|
1
|
2949
|
December 18, 2016
|
|
Consider the following species
|
|
1
|
732
|
December 18, 2016
|
|
What do you understand by isoelectronic species?
|
|
1
|
3388
|
December 18, 2016
|
|
For each of the following pairs
|
|
1
|
2846
|
December 18, 2016
|
|
How would you explain the fact that the first ionisation enthalpy of sodium
|
|
1
|
1143
|
December 18, 2016
|
|
Which of the elements Na, Mg, Si and P would have the greatest difference
|
|
1
|
1711
|
December 18, 2016
|
|
What are the various factors due to which the ionisation enthalpy
|
|
1
|
1067
|
December 18, 2016
|
|
Arrange the following in decreasing order
|
|
1
|
3552
|
December 18, 2016
|
|
Name the species that will be isoelectronic with the following atoms or ions
|
|
1
|
3133
|
December 18, 2016
|
|
Explain why cations are smaller and anions larger in radii
|
|
1
|
4142
|
December 18, 2016
|
|
List the factors that can influence the ionic radius of an element
|
|
0
|
7886
|
December 18, 2016
|
|
Use the periodic table to answer the following questions
|
|
1
|
2273
|
December 18, 2016
|
|
Ustify the given statement with suitable examples
|
|
1
|
2352
|
December 18, 2016
|
|
Can an element with atomic number 126
|
|
1
|
2002
|
December 18, 2016
|
|
Give the name and atomic number of the inert gas atom
|
|
1
|
5853
|
December 18, 2016
|