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प्रश्न
What is electron affinity?
उत्तर
Electron affinity is the energy released when an electron is added to an isolated gaseous atom to form the negative ion (anion).
Unit: Its units are electron volt (eV).
Its SI units are Kilojoules per mole (KJmol-1).
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संबंधित प्रश्न
Element X is a metal with a valency 2, Y is 3 non- metal with a valency 3.
1) Write an equation to show how Y from an ion.
2) If Y is a diatomic gas, write an equation for the direct combination of X and Y to form a compound.
The energy released when an electron is added to a neutral gaseous isolated atom to form a negatively charged iron.
An element in period 3, whose electron affinity is zero:
Why is the electron affinity of fluorine less than chlorine?
Fill in the blank
The nature of oxide Al2O3 is ____
State whether the following statement is true or false
Al2O3 is an amphoteric oxide.
Choose the correct answer:
Among the period 2 elements the one which has high electron affinity is
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?
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?
