MEDIUM
11th CBSE
IMPORTANT
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Write down the outermost electronic configuration of alkali metals. How will you justify their placement in group 1 of the periodic table?

Important Questions on Classification of Elements and Periodicity in Properties

MEDIUM
11th CBSE
IMPORTANT
Write the drawbacks in Mendeleev’s periodic table that led to its modification.
 
MEDIUM
11th CBSE
IMPORTANT
In what manner is the long form of the periodic table better than Mendeleev’s periodic table? Explain with examples.
MEDIUM
11th CBSE
IMPORTANT
Discuss and compare the trend in ionisation enthalpy of the elements of group 1 with those of group 17 elements.