Chemistry
Among period 2 elements, the element which has highest electron affinity is :
- Lithium
- Carbon
- Chlorine
- Fluorine
Periodic Table
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Answer
Fluorine
Reason — Electron affinity increases from left to right in a period. Out of the given options, Lithium, Carbon and Fluorine are period 2 elements in that order. Hence, Fluorine has the highest electron affinity among period 2 elements.
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Related Questions
An element in period 3 whose electron affinity is zero is :
- Neon
- Sulphur
- Sodium
- Argon
The number of electrons in the valence shell of a halogen is :
- 1
- 3
- 5
- 7
Ionisation potential increases over a period from left to right because :
- Atomic radius and nuclear charge increase
- Atomic radius and nuclear charge decrease
- Atomic radius increases and nuclear charge decreases
- Atomic radius decreases and nuclear charge increases
An element A belonging to period 3 and group II will have :
- 3 shells and 2 valence electrons
- 2 shells and 3 valence electrons
- 3 shells and 3 valence electrons
- 2 shells and 2 valence electrons