|
On the basis of quantum numbers, justify that sixth period
|
|
2
|
1724
|
August 24, 2018
|
|
Predict the formulae of the stable binary compounds
|
|
1
|
3454
|
December 18, 2016
|
|
The first (∆iH1) and the second (∆iH2) ionisation enthalpies
|
|
1
|
3585
|
December 18, 2016
|
|
First member of each group of representative elements
|
|
1
|
5313
|
December 18, 2016
|
|
He increasing order of reactivity among group 1 elements
|
|
1
|
4244
|
December 18, 2016
|
|
Nitrogen has positive electron gain enthalpy
|
|
1
|
3980
|
December 18, 2016
|
|
Which one (atom/ion) in the following pairs has higher electron gain enthalpy?
|
|
1
|
2086
|
December 18, 2016
|
|
What is the significance of the terms
|
|
1
|
752
|
December 18, 2016
|
|
How do alkali and alkaline earth metals react with water?
|
|
0
|
1705
|
December 18, 2016
|
|
He electron gain enthalpy of bromine is 3.36 eV
|
|
1
|
4579
|
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
|
1697
|
December 18, 2016
|
|
Give reason for the following questions
|
|
1
|
2826
|
December 18, 2016
|
|
Ionisation enthalpies of elements of second period are given below
|
|
1
|
3624
|
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
|
2945
|
December 18, 2016
|
|
Consider the following species
|
|
1
|
730
|
December 18, 2016
|
|
What do you understand by isoelectronic species?
|
|
1
|
3386
|
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
|
1142
|
December 18, 2016
|
|
Which of the elements Na, Mg, Si and P would have the greatest difference
|
|
1
|
1709
|
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
|
3551
|
December 18, 2016
|
|
Name the species that will be isoelectronic with the following atoms or ions
|
|
1
|
3130
|
December 18, 2016
|
|
Explain why cations are smaller and anions larger in radii
|
|
1
|
4141
|
December 18, 2016
|
|
List the factors that can influence the ionic radius of an element
|
|
0
|
7881
|
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
|
2351
|
December 18, 2016
|
|
Can an element with atomic number 126
|
|
1
|
2000
|
December 18, 2016
|
|
Give the name and atomic number of the inert gas atom
|
|
1
|
5851
|
December 18, 2016
|