Other atoms are also named based on the number of protons they carry.
Notice in the diagram that eight different isotopes of Carbon are illustrated.
Since protons and neutrons weigh about the same, the atomic mass of ordinary carbon is 6 6 = 12.
My research interests revolve around archaeological dating using AMS, radiocarbon AMS dating of bone, the chronology of the Middle and Upper Palaeolithic of Europe, reservoir effects in 14C, the application of Bayesian calibration methods to archaeological dating, dating novel sample types and sample pretreatment chemistry. Direct radiocarbon dating and DNA analysis of the Darra-i-Kur (Afghanistan) human temporal bone. Bonneau, A., Pearce, D., Mitchell, P., Staff, R., Arthur, C., Mallen, L., Brock, F and Higham, T. The earliest directly dated rock paintings from southern Africa: New AMS radiocarbon dates. Castel, J.-C., Cretin, C., Higham, T., Morala, A., Ranlett, S., Sisk, M., Devièse, T.
Needless to say, Muslim academics have disputed the claims.
Mustafa Shah of London’s School of Oriental and African Studies (SOAS) said: “If anything, the manuscript has consolidated traditional accounts of the Koran’s origins.” Meanwhile, Shady Hekmat Nasser from the University of Cambridge said: “We already know from our sources that the Koran was a closed text very early on in Islam, and these discoveries only attest to the accuracy of these sources.” Dr Keith Small, a Koranic manuscript consultant at Oxford’s Bodleian Library, admits the carbon dating applies to the parchment, not the ink, while the calligraphy is characteristic of a later style.
Most nitrogen atoms have seven protons and seven neutrons, so their atomic mass is 7 7 = 14.
The fact that it has seven protons is what makes it nitrogen.