About Nitrogen-9 nucleus
- It is characterised by seven protons and two neutrons – which is an unusually high proton-to-neutron ratio.
- This disparity has a critical effect on the isotope’s stability, influencing its decay processes as well as overall behaviour.
- For one, the high proton content places nitrogen-9 atoms beyond the conventional stability thresholds.
- Most nitrogen comes as the isotope nitrogen-14, with seven protons and seven neutrons. But physicists say they have glimpsed a far more elusive variant with just two neutrons.
What are Isotopes?
- These are atoms of a given element that vary only in the number of neutrons. This difference sets apart one isotope from another.
- Many isotopes are also unstable, especially those whose atoms have too few neutrons for the number of protons.
- Unstable isotopes are short-lived, and often decay by releasing some energy to achieve a more stable configuration.
What are nuclides?
- It is an analogous table for atomic nuclei characterised by a unique combination of protons and neutrons.
- A table or chart of nuclides is a two-dimensional graph of isotopes of the elements.
- One axis shows the number of neutrons (N) and the other shows the number of protons (Z) in each atomic nucleus.
- Each point on the graph denotes a nuclide.
Q1) What are Neutrons?
Neutrons are electrically neutral particles with mass approximately equal to that of a hydrogen atom. High-energy neutrons are emitted from a chemical source. The neutrons collide with nuceli of the formation minerals in elastic-type collisions.
Source: Strong evidence’ unusual nitrogen-9 nucleus exists, scientists say
Last updated on June, 2025
→ UPSC Notification 2025 was released on 22nd January 2025.
→ UPSC Prelims Result 2025 is out now for the CSE held on 25 May 2025.
→ UPSC Prelims Question Paper 2025 and Unofficial Prelims Answer Key 2025 are available now.
→ UPSC Calendar 2026 is released on 15th May, 2025.
→ The UPSC Vacancy 2025 were released 1129, out of which 979 were for UPSC CSE and remaining 150 are for UPSC IFoS.
→ UPSC Mains 2025 will be conducted on 22nd August 2025.
→ UPSC Prelims 2026 will be conducted on 24th May, 2026 & UPSC Mains 2026 will be conducted on 21st August 2026.
→ The UPSC Selection Process is of 3 stages-Prelims, Mains and Interview.
→ UPSC Result 2024 is released with latest UPSC Marksheet 2024. Check Now!
→ UPSC Toppers List 2024 is released now. Shakti Dubey is UPSC AIR 1 2024 Topper.
→ Also check Best IAS Coaching in Delhi