| List-I | List-II | ||
| (A) | Al3+ < Mg2+ < Na+ < F– | (I) | Ionisation Enthalpy |
| (B) | B < C < O < N | (II) | Metallic character |
| (C) | B < Al < Mg < K | (III) | Electronegativity |
| (D) | Si < P < S < Cl | (IV) | Ionic radii |
| 1. | The Electronegativity of elements increases when moving from left to right in the periodic table. |
| 2. | Ionisation enthalpy decreases in a group from top to bottom. |
| 3. | Non-metallic character increases in moving from left to right in a period. |
| 4. | Metallic character increases in moving from left to right in a period. |
| 1. | Li < Na < K < Rb | Atomic radius |
| 2. | F > N > O > C | Ionisation enthalpy |
| 3. | Si < P < S < Cl | Electronegativity |
| 4. | F < Cl < Br < I | Electronegativity |
Which one of the following has the highest electronegativity?
1. Si
2. P
3. Cl
4. Br
| 1. | Carbon | 2. | Oxygen |
| 3. | Boron | 4. | Fluorine |
| Down a group | Across a period from left to right |
|
| 1. | Increase | Increase |
| 2. | Increase | Decrease |
| 3. | Decrease | Increase |
| 4. | Decrease | Decrease |
The outermost electronic configuration of the most electronegative element is:
1.
2.
3.
4.