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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.
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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
Choose the correct answer from the options given below:
If an element A belongs to Period 3 and Group II, then it will have
A. 3 shells and 2 valence electrons
B. 2 shells and 3 valence electrons
C. 3 shells and 3 valence electrons
D. 2 shells and 2 valence electrons
State the factors on which electron affinity depends ?
Give reason:
Electronegativity of chorine is higher than Sulphur?
Explain the following:
Halogens have a high electron affinity.
Which has higher E.A. fluorine or Neon?
State whether the following statement is true or false
The elements with higher electron affinity have higher ionization potential.
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)
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?
