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प्रश्न
विकल्प
True
False
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उत्तर
False.
Concept Insight: (i) There is inverse relation between atomic size and electron affinity. More is the size, less is the electron affinity and vice versa because more is the size of atom, more is the distance between the nucleus and last shell to which electron enters. This results in decrease in force of attraction between the nucleus and incoming electron and hence the electron affinity decreases. Fluorine has smaller size than chlorine so it must have less electron affinity than chlorine.
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संबंधित प्रश्न
Draw an electron dot diagram to show the formation of each of the following compounds:
Methane
[H = 1, C = 6, Mg = 12, Cl = 17]
Electron affinity values generally _______ across the periods left to right and ______ down the group top to bottom.
Explain the following:
Halogens have a high electron affinity.
Fill in the blank
Energy released when electron is added to a neutral gaseous atom is called ______.
State whether the following statement is true or false
Al2O3 is an amphoteric oxide.
State whether the following statement is true or false
The elements with higher electron affinity have higher ionization potential.
Down the group, electron affinity ______.
The changes in the properties of elements on moving from left to right across a period of the Periodic Table. For the property, choose the correct answer.
The electron affinity of elements in groups 1 to 7:
On descending a group, ______ in ionisation potential as well as electron affinity ______ oxidising capacity.
Neon shows zero electron affinity due to ______.
