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Magazine Problem 16
What do you mean by representative elements? Give an example.
Problem 17
Which group contains the noble gases and what are the special characteristics of these gases?
Problem 20
Describe how the metallic and non-metallic characters vary along a period and group of the periodic table.
Problem 23
block elements can exhibit variable number of oxidation states.
Problem 24
What is a covalent radius?
Problem 27
How does the electron affinity vary in the first transition series?
Problem 28
In the f-block elements differentiating electron enters into f-orbital of shell.
Problem 34
Why are the lanthanides and the actinides given a separate position in the modern periodic table?
Problem 36
Describe how effective nuclear charge changes along a period and a group in a periodic table.
Problem 38
Why are the values of the first, the second, the third ionization energies different from each other?
