Nitrogen atom is represented at 147N. How many electrons does it need to attain the noble gas configuration?
Answer & explanation
Correct answer: option 3
The correct answer is option (3) 3.
The nitrogen atom needs 3 electrons to attain the noble gas configuration.
Here's why:
Atomic number: The atomic number of nitrogen (N) is 7, which means it has 7 protons in its nucleus.
Electronic configuration: In its neutral state, a nitrogen atom has 7 electrons.
Noble gas configuration: The nearest noble gas to nitrogen is neon (Ne), which has a stable electronic configuration of 1s²2s².
Electrons needed: To achieve the same stable configuration, nitrogen needs to gain 3 electrons to fill its outer shell (2s orbital) to the maximum of 2 electrons.
Therefore, nitrogen needs 3 electrons to reach the stable noble gas electron configuration.