Class 11ChemistryClassification of Elements and Periodicity in PropertiesMix Examples - Classification of Elements and Periodicity in Properties
DifficultThe electronic configurations of four elements are:
$I. [Xe] \, 6s^1$
$II. [Xe] \, 4f^{14} \, 5d^1 \, 6s^2$
$III. [Ar] \, 4s^2 \, 4p^5$
$IV. [Ar] \, 3d^7 \, 4s^2$
Select the incorrect statement about these elements.
$I. [Xe] \, 6s^1$
$II. [Xe] \, 4f^{14} \, 5d^1 \, 6s^2$
$III. [Ar] \, 4s^2 \, 4p^5$
$IV. [Ar] \, 3d^7 \, 4s^2$
Select the incorrect statement about these elements.
- A$I$ is a strong reducing agent.
- B$II$ is a $d-$ block element.
- C$III$ has high electron affinity.
- D$IV$ exhibits variable oxidation state.
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Similar Questions
Consider the following statements:
$I.$ The radius of an anion is larger than that of the parent atom.
$II.$ The ionization energy generally increases with increasing atomic number in a period.
$III.$ The electronegativity of an element is the tendency of an isolated atom to attract an electron.
Which of the above statements is/are correct?
$I.$ The radius of an anion is larger than that of the parent atom.
$II.$ The ionization energy generally increases with increasing atomic number in a period.
$III.$ The electronegativity of an element is the tendency of an isolated atom to attract an electron.
Which of the above statements is/are correct?
MediumAIIMS 2012
View SolutionWhich of the following is a false statement?
Easy
View SolutionWhich of the following statements is incorrect?
Medium
View SolutionMatch the properties of elements given in List-$I$ with List-$II$.
List-$I$ List-$II$ $(1)$ Active non-metal with high electron gain enthalpy. $(A)$ $Na$ $(2)$ Soft metal with low ionization enthalpy. $(B)$ $Sb$ $(3)$ Metalloid that forms ${M_2}{O_3}$ type oxide. $(C)$ $He$ $(4)$ Chemically inert gas. $(D)$ $Cl$
| List-$I$ | List-$II$ |
| $(1)$ Active non-metal with high electron gain enthalpy. | $(A)$ $Na$ |
| $(2)$ Soft metal with low ionization enthalpy. | $(B)$ $Sb$ |
| $(3)$ Metalloid that forms ${M_2}{O_3}$ type oxide. | $(C)$ $He$ |
| $(4)$ Chemically inert gas. | $(D)$ $Cl$ |
Medium
View SolutionOutermost electronic configuration of a group $13$ element,$E$,is $4s^2 4p^1$. The electronic configuration of an element of $p$-block,period $5$,placed diagonally to element $E$ is:
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