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Questions
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.
State the term/process for the following:
The energy released when an atom in the gaseous state accepts an electron to form an anion.
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Solution
Electron affinity
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RELATED QUESTIONS
Arrange the following as per the instruction given in the brackets:
He, Ar, Ne (Increasing order of the number of electron shells)
Define the term ‘electron affinity’.
Give reason:
Electron affinity of halogens is comparatively high ?
Explain the following:
The reducing power of element increases down in the group while decreases in a period.
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 of element C.
- lonization energy of element C is less than that of element A.
- Electron affinity of B is zero.
State whether the following statement is true or false
The elements with higher electron affinity have higher ionization potential.
Neon shows zero electron affinity due to ______.
The electron affinity of an element X is greater than that of element Y.
How is the electronegativity of X likely to compare with that of Y?
Among period 2 elements A, B, C and D, the one which has highest electron affinity is ______.
State electron affinity unit.
