How many allotropes does nitrogen have?(a) Zero(b) One(c) Two(d) ThreeI got this question in an international level competition.My question is taken from P-Block Elements in chapter P-Block Elements of Chemistry – Class 12

How many allotropes does nitrogen have?(a) Zero(b) One(c) Two(d) Three

1.	How many allotropes does nitrogen have?(a) Zero(b) One(c) Two(d) ThreeI got this question in an international level competition.My question is taken from P-Block Elements in chapter P-Block Elements of Chemistry – Class 12
Answer» The CORRECT answer is (a) Zero The explanation is: Nitrogen ATOM does not exhibit allotropy. This is because of its relatively small size and high inter-electronic REPULSION due to which the N – N becomes extremely weak. However, theoretically there are TWO predicted forms of allotropes of nitrogen. First, alpha nitrogen assumes a cubic structure and exists only below 35.6 K which is a whooping -237.55°C. Beta nitrogen exists from 35.6 K to 63.15 K. After that, it melts.

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