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प्रश्न
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.
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उत्तर
Electron affinity
संबंधित प्रश्न
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.
Arrange the elements of group 17 and group 1 according to the given conditions.
Increasing electron affinity
Arrange the elements of group 17 and group 1 according to the given conditions.
Increasing electron affinity
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 element A is more than that that of element C.
Fill in the blank
The nature of oxide Al2O3 is ____
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.
State whether X is likely to be placed to the left or to the right of Y in the periodic table.
Among period 2 elements A, B, C and D, the one which has highest electron affinity is ______.
