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प्रश्न
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.
उत्तर
| Element | Atomic number | No. of electrons in the valence shell | Group to which the element belongs |
| A | Z - 1 | 7 | 17 |
| B | Z | ||
| C | Z + 1 |
Both A and C need one electron to get a stable configuration.
Since A belongs to group 17 while C belongs group 1, so size of atoms of A is greater than that of C hence Electron affinity of element A is more than that of element C.
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संबंधित प्रश्न
Define the term ‘electron affinity’.
Explain the following:
Halogens have a high electron affinity.
An element in period 3, whose electron affinity is zero:
What is electron affinity?
Down the group, electron affinity ______.
Among the Period 2 elements, the element which has high electron affinity is
Arrange the following as per instruction given in the bracket.
Cl, F, Br, I (increasing electron affinity)
In a period, increase in electron affinity increases ______.
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?
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.
