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ICSE Class 10 Answered

Why electronegatuvity and electron affinity increases with decrease in atomic size
Asked by lovemaan5500 | 24 Jan, 2018, 20:42: PM
answered-by-expert Expert Answer
Ionisation and electron affinity are dependent on atomic size and nuclear force. So removing or adding electron will depend on how tightly the electron is held by the nucleus, which depends on attractive force between the nucleus and electrons and repulsion force between the electrons.
In the periodic table, atomic size decreases from left to right and the nuclear force increases because of that atom of the elements can gain or withdraw electrons from other elements easily in this way their electronegativity, as well as electron affinity, increases.  
Answered by Ramandeep | 25 Jan, 2018, 10:20: AM

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