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Magazine Problem 39
How does electron affinity vary in halogens?
Problem 40
What is the basic difference between Mendeleeff's periodic table and modern periodic table?
Problem 42
What is the difference between electronegativity and electropositivity?
Problem 44
What is the difference between transition and inner transition elements?
Problem 45
How does filling of valence electrons takes place in p-block, d-block and f-block elements?
Problem 46
What are the merits and limitations of the long form of the periodic table?
Problem 48
What are the limitations of Mendeleeff 's periodic table?
Problem 49
Explain briefly the periods of the modern periodic table.
Problem 50
Explain briefly about the groups of the modern periodic table and also classify the elements depending on electron filling in s-, p-, d- and f-subshells along with the position in the periodic table.
