Class 11ChemistryClassification of Elements and Periodicity in PropertiesMix Examples - Classification of Elements and Periodicity in Properties
MediumHow 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.
- A$3$
- B$2$
- C$4$
- D$1$
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Similar Questions
Match the following properties in Column-$I$ with their correct trends in Column-$II$:
Column-$I$ Column-$II$ $A$. Ionisation potential $P$. $O < F < N$ $B$. Electronegativity $Q$. $N < O < F$ $C$. $Z_{eff}$ $R$. $O < N < F$ $D$. Electron affinity $S$. $N < C < O$
| Column-$I$ | Column-$II$ |
| $A$. Ionisation potential | $P$. $O < F < N$ |
| $B$. Electronegativity | $Q$. $N < O < F$ |
| $C$. $Z_{eff}$ | $R$. $O < N < F$ |
| $D$. Electron affinity | $S$. $N < C < O$ |
Difficult
View SolutionWhich blocks of the periodic table contain the representative elements?
Easy
View SolutionWhich of the following orders is incorrect?
Medium
View SolutionGiven below are two statements:
Statement $I$: The second ionisation enthalpy of $Na$ is larger than the corresponding ionisation enthalpy of $Mg$.
Statement $II$: The ionic radius of $O^{2-}$ is larger than that of $F^{-}$.
In the light of the above statements, choose the correct answer from the options given below.
Statement $I$: The second ionisation enthalpy of $Na$ is larger than the corresponding ionisation enthalpy of $Mg$.
Statement $II$: The ionic radius of $O^{2-}$ is larger than that of $F^{-}$.
In the light of the above statements, choose the correct answer from the options given below.
DifficultJEE MAIN 2026
View SolutionWhich of the following statements is not correct?
Medium
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