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An element has atomic number 19. Where would you expect this element in the periodic table and why?
|
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0
|
1815
|
October 19, 2016
|
|
An element X belongs to 3rd period and group 2 of the periodic table
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1
|
4230
|
October 19, 2016
|
|
On the basis of atomic numbers predict to which block the elements with atomic number 9, 37, 46 and 64 belongs to?
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0
|
2728
|
October 19, 2016
|
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Name two elements that you would expect to have chemical properties similar to Mg. What is the basis for your choice?
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0
|
1869
|
October 19, 2016
|
|
How does metallic characters change when we move
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1
|
827
|
October 19, 2016
|
|
Identify the element that has the lower ionization energy
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1
|
1465
|
October 19, 2016
|
|
Identify the element that has the larger atomic radius
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1
|
1105
|
October 19, 2016
|
|
The electronic configuration of the elements X, Y and Z are given below
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1
|
3305
|
October 19, 2016
|
|
S-block and p-block elements except 18th group elements
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|
1
|
1862
|
October 19, 2016
|
|
Elements in a group generally possess similar properties
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1
|
2519
|
October 19, 2016
|
|
State the number of valence electrons
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1
|
1711
|
October 19, 2016
|
|
Given below is the electronic configuration of elements A, B, C, D
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|
1
|
2414
|
October 19, 2016
|
|
What is a periodic property?
|
|
1
|
21092
|
October 19, 2016
|
|
Why was the basis of classification of elements changed from the atomic mass to the atomic number?
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|
0
|
6400
|
October 19, 2016
|
|
Complete the following table using periodic table
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|
1
|
2129
|
October 19, 2016
|
|
Complete the following table using the periodic table
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|
1
|
2825
|
October 19, 2016
|
|
Write down the characteristics of the elements having atomic number 17
|
|
1
|
1819
|
October 19, 2016
|
|
Explain how the elements are classified
|
|
1
|
1802
|
October 19, 2016
|
|
Define the modern periodic law. Discuss the construction of the long form of the periodic table
|
|
0
|
9986
|
October 19, 2016
|
|
What are the limitations of Mendeleeff’s periodic table?
|
|
1
|
1720
|
October 19, 2016
|
|
Newlands proposed the law of octaves
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1
|
2474
|
October 19, 2016
|