NTA Abhyas NEET2020ChemistryClassification of Elements and Periodicity in PropertiesPractice
N 0 /4 atoms of X(g) are converted into X + (g) by energy E 1 . N 0 /4 atoms of X(g) are converted into X – (g) by energy E 2 . Hence, ionisation potential and electron affinity of X(g) are :
Options
- A4 E 1 N 0 , 4 E 1 - E 2 N 0
- B4 E 1 N 0 , 4 E 2 N 0
- CE 1 - E 2 N 0 , 4 E 2 N 0
- DNone is correct
Correct answer
B. 4 E 1 N 0 , 4 E 2 N 0
Step-by-step solution
X g ⟶ X + g + e - If I ionisationh energy then ∴ N 0 4 I = E 1 ∴ I = 4 E 1 N 0 If E is electron-affinity then X g + e - ⟶ X - g N 0 4 E = E 2 ∴ E = 4 E 2 N 0