Nitrogen has several isotopes, which are atoms of the same element (nitrogen) that have the same number of protons but different numbers of neutrons. The most common isotopes of nitrogen are: 1. **Nitrogen-14 (\(^14N\))**: This is the most stable and abundant isotope, making up about 99.6% of natural nitrogen. It has 7 protons and 7 neutrons.
Paul Houston could refer to several individuals, as it is a relatively common name. However, one notable Paul Houston is an American educator and advocate for education reform. He served as the executive director of the Texas Association of School Administrators and has been involved in various educational initiatives and discussions regarding public education policy.