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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)
Draw an electron dot diagram to show the formation of the following compound:
Methane
[H = 1, C = 6]
Element X is a metal with a valency 2, Y is 3 non- metal with a valency 3.
1) Write an equation to show how Y from an ion.
2) If Y is a diatomic gas, write an equation for the direct combination of X and Y to form a compound.
Give reason:
Electron affinity of halogens is comparatively high ?
Give reason:
Electronegativity of chorine is higher than Sulphur?
Which has higher E.A. fluorine or Neon?
Arrange the following according to the instruction given in the bracket:
F, B, N, O (In the increasing order of electron affinity).
Fill in the blank
Noble gases have ______ electron affinity.
State whether the following statement is true or false
The elements with higher electron affinity have higher ionization potential.
On descending a group, ______ in ionisation potential as well as electron affinity ______ oxidising capacity.
