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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 B is Zero.
उत्तर
| Element | Atomic number | No. of electrons in the valence shell | Group to which the element belongs |
| A | Z - 1 | ||
| B | Z | ||
| C | Z + 1 | 1 | 1 |
Since B is a noble gas element so its electron affinity is zero as its octet is complete.
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संबंधित प्रश्न
Arrange the following as per the instruction given in the brackets:
He, Ar, Ne (Increasing order of the number of electron shells)
Draw an electron dot diagram to show the formation of each of the following compounds:
Methane
[H = 1, C = 6, Mg = 12, Cl = 17]
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.
F, B, N, O (In the increasing order of electron affinity)
Fill in the blank
Energy released when electron is added to a neutral gaseous atom is called ______.
Fill in the blank
Noble gases have ______ electron affinity.
Choose the correct answer:
Among the period 2 elements the one which has high electron affinity is
Among the Period 2 elements, the element which has high electron affinity is
Among period 2 elements A, B, C and D, the one which has highest electron affinity is ______.
