1. Electronegativity increases across a period and decreases down a group in the periodic table.
2. Silicon (Si) has the lowest electronegativity, while fluorine (F) has the highest.
3. Order: Si \(<\) C \(<\) N \(<\) O \(<\) F.
List-I | List-II | ||
(A) | mI | (I) | Shape of orbital |
(B) | ms | (II) | Size of orbital |
(C) | I | (III) | Orientation of orbital |
(D) | n | (IV) | Orientation of spin of electron |
List I | List II | ||
---|---|---|---|
A | Mesozoic Era | I | Lower invertebrates |
B | Proterozoic Era | II | Fish & Amphibia |
C | Cenozoic Era | III | Birds & Reptiles |
D | Paleozoic Era | IV | Mammals |