Class 11ChemistryClassification of Elements and Periodicity in PropertiesMix Examples - Classification of Elements and Periodicity in Properties
MediumWhich of the following is not correctly matched?
- A$Z = 48;$ group no. $= 12^{th},$ period no. $= 5^{th}$
- B$[Xe] \, 4f^7 \, 5d^1 \, 6s^2;$ group no. $= 3^{rd},$ period no. $= 6^{th}$
- C$[Rn] \, 5f^{14} \, 6d^3 \, 7s^2;$ group no. $= 5^{th},$ period no. $= 7^{th}$
- D$Z = 56;$ group no. $= 2^{nd},$ period no. $= 6^{th}$
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Similar Questions
Which of the following statements is/are wrong?
Difficult
View SolutionWhich of the following statements are correct for the classification of elements?
$I$. The properties of elements are periodic functions of their atomic numbers.
$II$. Non-metallic elements are less in number than the metallic elements.
$III$. The first ionisation energies of elements along a period do not vary in a regular manner.
$IV$. The ground state electronic configuration of $Pd (Z=46)$ is $[Kr] 4d^8 5s^2$.
$I$. The properties of elements are periodic functions of their atomic numbers.
$II$. Non-metallic elements are less in number than the metallic elements.
$III$. The first ionisation energies of elements along a period do not vary in a regular manner.
$IV$. The ground state electronic configuration of $Pd (Z=46)$ is $[Kr] 4d^8 5s^2$.
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 SolutionChoose the correct statement.
Medium
View SolutionWhich of the following set of properties generally decreases along a period?
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