Question
Chemistry Question on Modern Periodic Law And The Present Form Of The Periodic Table
The element expected to form largest in achieve the nearest noble gas configuration.
A
F
B
N
C
Na
D
O
Answer
N
Explanation
Solution
To achieve the nearest noble gas configuration, elements tend to gain or lose electrons in their outermost shell. Let's consider the electron configurations of the given elements:
F (Fluorine): Atomic number 9 Electron configuration: 1s² 2s² 2p⁵
N (Nitrogen): Atomic number 7 Electron configuration: 1s² 2s² 2p³
Na (Sodium): Atomic number 11 Electron configuration: 1s² 2s² 2p⁶ 3s¹
O (Oxygen): Atomic number 8 Electron configuration: 1s² 2s² 2p⁴
Nitrogen needs to gain three electrons to achieve the noble gas configuration of neon (1s² 2s² 2p⁶). Nitrogen forms largest in achieve the nearest noble gas configuration.
Therefore, The correct option is (B): N