Class 11ChemistryClassification of Elements and Periodicity in PropertiesMix Examples - Classification of Elements and Periodicity in Properties
DifficultWhich of the following statements is/are wrong?
- Avan der Waals' radius of iodine is more than its covalent radius
- BAll isoelectronic ions belong to same period of the periodic table
- C$I.E._1$ of $N$ is higher than that of $O$ while $I.E._2$ of $O$ is higher than that of $N$
- DThe electron affinity of $N$ is almost zero while that of $P$ is $74.3 \ kJ \ mol^{-1}$
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Similar Questions
How many of the following statements are correct?
$(a)$ 'He' is the second most abundant element in the universe.
$(b)$ The symbol for the element with atomic number $110$ is Ds.
$(c)$ Osmium has the highest density among all elements.
$(d)$ Francium is the most electropositive element in the periodic table.
$(a)$ 'He' is the second most abundant element in the universe.
$(b)$ The symbol for the element with atomic number $110$ is Ds.
$(c)$ Osmium has the highest density among all elements.
$(d)$ Francium is the most electropositive element in the periodic table.
Which of the following pairs shows opposite trends when moving from left to right in a period and from top to bottom in a group?
Easy
View SolutionThe set of elements that differ in mutual relationship from those of the other sets is:
Which of the following statement$(s)$ is/are correct?
Difficult
View SolutionWhich of the following orders is $NOT$ correct with respect to the mentioned properties?
Medium
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