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प्रश्न
विकल्प
True
False
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
Arrange the following as per the instruction given in the brackets:
He, Ar, Ne (Increasing order of the number of electron shells)
Give one word or phrase for the following:
The amount of energy released when an atom in the gaseous state accepts an electron to form an anion.
Arrange the elements of second period in increasing order of their electron affinity. Name the elements which do not follow the trend in this period.
An element in period 3, whose electron affinity is zero:
Arrange the following in increasing order of property indicated
F, Cl, Br, I (electron affinity)
What is electron affinity?
The following questions refer to the Periodic Table.
Which of the elements has the greatest electron affinity among the halogens?
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.
Arrange the following as per instruction given in the bracket.
Cl, F, Br, I (increasing electron affinity)
