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प्रश्न
What is electron affinity?
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उत्तर
Electron affinity is the energy released when an electron is added to an isolated gaseous atom to form the negative ion (anion).
Unit: Its units are electron volt (eV).
Its SI units are Kilojoules per mole (KJmol-1).
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संबंधित प्रश्न
Give one word or a phrase:
The energy released when an electron is added to a neutral gaseous isolated atom to form a negatively charged ion.
Give reason:
Electronegativity of chorine is higher than Sulphur?
A, B, C are three elements in which B is an inert gas other than helium.With this information complete the following table.
| Element | Atomic number | No. of electrons in the valence shell | Group to which the element belongs |
| A | Z - 1 | ||
| B | Z | ||
| C | Z + 1 |
Also, explain the following : Electron affinity of B is Zero.
Fill in the blank
Noble gases have ______ electron affinity.
Arrange the following in increasing order of property indicated
F, Cl, Br, I (electron affinity)
Explain
Halogens have high electron affinity.
Down the group, electron affinity ______.
Among the Period 2 elements, the element which has high electron affinity is
The electron affinity of an element X is greater than that of element Y.
How is the oxidising power of X likely to compare with that of Y?
State electron affinity unit.
