Question

1. Out of metallic radius and covalent radius of an
element, which is larger and why?​

Answer 1

Answer:

The covalent radius is measured by overlapping of atomic clouds. Due to this the nuclei are pulled together as the electrons are positioned between the nuclei. This contraction of nucleus makes the covalent radius smaller. Metallic radii are measured as the distance between two metal atoms bonded with a single bond. This is very difficult to measure as the metal atoms are in a chunk of metal as positive ions surrounded by a sea of electrons. Thus the metal ions are touching the electrons and are not like overlapping which is the case of covalent radii. Because of this the metallic radii of atoms is greater than the corresponding covalent radii of those metals.

Explanation:

Answer 2

Answer:

• Due to this the nuclei are pulled together as the electrons are positioned between the nuclei.
• Thus the metal ions are touching the electrons and are not like overlapping which is the case of covalent radii.
• Because of this the metallic radii of atoms is greater than the corresponding covalent radii of those metals.

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