
Facts about element 173 - Physics Stack Exchange
2019年4月25日 · I am watching a video about element 173 being the biggest and last element that can ever be assembled. The reason given as the last element that can be created is that the electrons would have to orbit faster than the speed of light for an element 174 to be allowed. I have 2 questions concerning element 173....
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How can the nucleus of an atom be in an excited state?
The nucleus of an element can be left in an excited state after an $\alpha$-particle emission as well, and the reasons for the $\gamma$-particle decay are very much the same. Share Cite
Why does a "typical" hydrogen atom have no neutron?
2016年5月24日 · The chemical properties of an element are always determined by the atomic number, that is, the number of protons in the nucleus. All carbon atoms have six protons, all iron atoms have 26, etc. It's the atomic number which is featured prominently in the periodic table, for example. Until the neutron was discovered in 1932, this was fine.
Why are elements with even atomic number more abundant?
2017年6月20日 · The binding energy of a nucleus depends on the pairing status of the protons and neutrons. In particular, in the semi-empirical mass formula, there is a pairing term which captures the mutual interaction associated with the energetic favourability of …