Atoms with high value of ionisation energy always have ______ .
Option i) large atomic size
ii) small size
iii) metallic properties
iv) strongly bound valence electrons
Answers
Answer:
Small size because ionization energy is inversely proportional to size
Answer:
The lowest energy needed to free the most loosely bound electron from an isolated gaseous atom, positive ion, or molecule is known as the ionization energy.
Explanation:
The electrons are trapped in the lower-energy orbitals that are closer to the nucleus.
The force of attraction between the nucleus and the electrons, which lie closer to each other, requires high ionization energy to remove an electron. This occurs in the atoms which possess a small size.
While, in the large size of atoms, the force of attraction between the nucleus and the electrons decreases. It results in less amount of ionization energy required to remove an electron.
In general, down the group, the atomic size increases and the ionization energy decreases. Therefore, ionization energy is inversely proportional to the atomic size.
Hence, atoms with a high value of ionization energy always have a small size.
The correct option is (ii) small size.
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