Chemical Bonding And Molecular Structure Question 361
Question: Number of electrons in the valence orbit of nitrogen in an ammonia molecule are [MH CET 2004]
Options:
A) 8
B) 5
C) 6
D) 7
Show Answer
Answer:
Correct Answer: B
Solution:
The electronic configuration of nitrogen is $ _7N=1s^{2},2s^{2},2p^{3} $ It has 5 electrons in valency shell, hence in ammonia molecule it complete its octet by sharing of three electron with three H atom, therefore it has 8 electrons in its valence shell in ammonia molecule $ \underset{H}{\mathop{\underset{\times }{\mathop{H\times \cdot \underset{.}{\overset{.\ .}{\mathop{N}}},\cdot \ \times H}},}}, $ or $ \underset{,H}{\mathop{H-\underset{|}{\overset{.\ .}{\mathop{N}}},-H}}, $
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