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प्रश्न
Explain
Halogens have high electron affinity.
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उत्तर
Halogens need only one electron to complete their octet and become stable their atomic size is very less hence the distance between their last shell and nucleus is very less, as a result the force of attraction between the nucleus and the incoming electron is less and hence the electron affinity is high for halogens.
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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)
Choose the correct answer from the options given below:
If an element A belongs to Period 3 and Group II, then it will have
A. 3 shells and 2 valence electrons
B. 2 shells and 3 valence electrons
C. 3 shells and 3 valence electrons
D. 2 shells and 2 valence electrons
Electron affinity values generally _______ across the periods left to right and ______ down the group top to bottom.
Arrange the elements of group 17 and group 1 according to the given conditions.
Increasing electron affinity
State whether the following statement is true or false
The elements with higher electron affinity have higher ionization potential.
What is electron affinity?
With reference to the variation of properties in the Periodic Table, which of the following is generally true?
Electron affinity increases going down a group.
In a period, increase in electron affinity increases ______.
Among period 2 elements A, B, C and D, the one which has highest electron affinity is ______.
In Period 3 of the Periodic Table, element B is placed to the left of element A. On the basis of this information, choose the correct word from the option to complete the following statement:
The element A would probably have ______ electron affinity than B.
