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प्रश्न
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.
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उत्तर
X is to the right side of Y as electron affinity increases from left to right in a period.
संबंधित प्रश्न
Arrange the following as per the instruction given in the brackets:
He, Ar, Ne (Increasing order of the number of electron shells)
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.
Give one word or a phrase:
The energy released when an electron is added to a neutral gaseous isolated atom to form a negatively charged ion.
Arrange the elements of second period in increasing order of their electron affinity. Name the elements which do not follow the trend in this period.
State the factors on which electron affinity depends ?
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.
Fill in the blank
The nature of oxide Al2O3 is ____
In a period, increase in electron affinity increases ______.
On descending a group, ______ in ionisation potential as well as electron affinity ______ oxidising capacity.
