The Atomic Packing Factor (APF) represents the fraction of the volume of a unit cell that is occupied by atoms. Different crystal structures have different APFs.
The atomic packing factor for an FCC unit cell is - (5) Question not attempted
Asked in Assistant Eng. (Mechanical) Competitive Examination, 2023 · Topic: Atomic Structure (Electronic Configurations of Multi-electron Atoms and Ions)
More Chemistry questions
- The correct increasing order of radii of given species Na$^{+}$, O$^{2-}$, F$^{-}$, Mg$^{2+} $ is -
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- Which of the following option represent the correct bond order? (1) O$_2$ > O$_2^-$ > O$_2^{\pm}$ > O$_2^{2-}$ (2) O$_2^{\pm}$ > O$_2^-$ > O$_2$ > O$_2^{2-}$ (3) O$_2^{2-}$ > O$_2$ > O$_2^-$ > O$_2^{\pm}$ (4) O$_2^{2-}$ < O$_2^-$ < O$_2$ < O$_2^{\pm}$ (5) Question not attempted
- Which (IUPAC Nomenclature Name) is not correctly matched? (1) Unnilpentium - Dubnium (2) Unniltríum - Lawrencium (3) Unnilunium - Nobelium (4) Ununpentium - Moscovium (5) Question not attempted
- Consider the following transformations: (A) N$_{2}$ $\rightarrow$ N$_{2}^{+}$ (B) O$_{2}$ $\rightarrow$ O$_{2}^{+}$ Choose the most appropriate option related to above transformations - - (5) Question not attempted
- Match Column-I (Electronic Configuration) to Column-II (Electron Gain Enthalpy KJ/mol) - Column - I (Electronic Configuration) (i) 1s$^2$ 2s$^2$ 2p$^6$ (ii) 1s$^2$ 2s$^2$ 2p$^6$ 3s$^1$ (iii) 1s$^2$ 2s$^2$ 2p$^5$ (iv) 1s$^2$ 2s$^2$ 2p$^4$ Column - II (Electron Gain Enthalpy KJ/mol) (A) - 53 (B) - 328 (C) - 141 (D) + 48
- The correct increasing order of first ionization enthalpy of second period elements is - (1) $ \text{Li} < \text{B} < \text{Be} < \text{C} < \text{O} < \text{N} < \text{F} $ (2) $ \text{Li} < \text{B} < \text{Be} < \text{C} < \text{O} < \text{F} < \text{N} $ (3) $ \text{Li} < \text{B} < \text{Be} < \text{C} < \text{N} < \text{F} < \text{O} $ (4) $ \text{Li} < \text{Be} < \text{B} < \text{C} < \text{N} < \text{O} < \text{F} $ (5) Question not attempted