Match the electronic configurations of the elements given in List-I with their correct characteristic(s) ( i.e. properties for given configuration) given in List-II and select the correct answer using the code given below the lists.
List-I | List-II | ||
P. | 1s2 | 1. | Element shows highest negative oxidation state. |
Q. | 1s2 2s2 2p5 | 2. | Element shows highest first ionisation enthalpy. |
R. | 1s2 2s2 2p6 3s2 3p5 | 3. | Element shows highest electronegativity on Pauling scale. |
S. | 1s2 2s2 2p2 | 4. | Element shows maximum electron gain enthalpy (most exothermic). |
Code
P Q R S
Text Solution
Verified by ExpertsB
This configuration belongs to He which has highest first ionisation enthalpy amongst all the elements of the periodic table. This is attributed to stable configuration and its small size.
and Group 17 th has ns 2 np 5 valence shell electron configuration. They have highest EN values and very high negative electron gain enthalpy because they can attain stable noble gas electronic configuration by picking up an electron. configuration belongs to fluorine and F has highest electronegativity on Pauling scale. configuration belongs to Cl, which has hte maximum negative electron gain enthalpy (even greater than F ; due to its larger size and lesser interelectronic repulsion).
This configuration belongs to C and it shows –4 oxidation state because it attains inert gas configuration of neon by gaining four electrons.
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems