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प्रश्न
The changes in the properties of elements on moving from left to right across a period of the Periodic Table. For the property, choose the correct answer.
The electron affinity of elements in groups 1 to 7:
पर्याय
Goes up and then down
Decreases and then increases
Increases
Decreases
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उत्तर
Increases
APPEARS IN
संबंधित प्रश्न
Give one word or a phrase:
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Electronegativity of chorine is higher than Sulphur?
Arrange the elements of group 17 and group 1 according to the given conditions.
Increasing electron affinity
Which has higher E.A. fluorine or Neon?
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.
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Electron affinity increases going down a group.
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Among the period 2 elements the one which has high electron affinity is
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How is the oxidising power of X likely to compare with that of Y?
