Class 11ChemistryClassification of Elements and Periodicity in PropertiesMix Examples - Classification of Elements and Periodicity in Properties
MediumWhat are the differences between the first element of a group and the subsequent elements in the same group?
(N/A) The first element of a group differs from the subsequent elements due to its small size,high electronegativity,and the absence of $d$-orbitals in its valence shell. The differences are summarized below:
| First element of the group | Other elements of the group |
|---|---|
| Forms covalent compounds. | Forms ionic compounds. |
| Small atomic/ionic size. | Larger atomic/ionic size. |
| High charge/radius ratio. | Low charge/radius ratio. |
| High electronegativity. | Low electronegativity. |
| Only $4$ orbitals available in the valence shell ($s$ and $p$). | $9$ orbitals available in the valence shell ($s, p,$ and $d$). |
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View SolutionMatch the following elements with their respective blocks in the periodic table based on their atomic number $(Z)$:
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| Column-$I$ | Column-$II$ |
|---|---|
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