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Question
State electron affinity unit.
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Solution
Electron volts per atom (eV/atom) or kJ mol−1.
RELATED QUESTIONS
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
Electron affinity values generally _______ across the periods left to right and ______ down the group top to bottom.
Explain the following:
Halogens have a high electron affinity.
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.
Fill in the blank
The nature of oxide Al2O3 is ____
State whether the following statement is true or false
The elements with higher electron affinity have higher ionization potential.
Explain
Halogens have high electron affinity.
Choose the correct answer:
Among the period 2 elements the one which has high electron affinity is
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:
On descending a group, ______ in ionisation potential as well as electron affinity ______ oxidising capacity.
