Question

identify the largest and smallest ion given below O2 ,F- ,Na+ ,Mg2+

Answer 1

Answer:

largest:O2 smallest:F- ,Na+ ,Mg2+

Explanation:

bcz,

atomic radius increase down the group and reduces left to right

due to electrostatic attraction force and nuclear force.

Answer 2

The largest and smallest ion in O²-, F-, Na+, and Mg2+ is O²- and Mg2+ Respectively.

• These are isoelectronic species.
• Iso electronic species are those species in which electrons are the same.
• In O²-, F-, Na+, and Mg2+, all have 10 electrons as in neon.
• In isoelectronic species, maximum the charged anion has the largest size and maximise charged action is the smallest in size.
• The largest anionic charge is the inter-electronic repulsion. due to the inter-electronic repulsion size of the anion increasing.

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