What is the symbol and charge of the element with 31 protons, 39 neutrons, and 28 electrons? What element is denoted by the electron configuration 1s22s22p63s23p6? What element is denoted by the electron configuration (Ne) 3s23p2?
We present a simple method for the quantitative analysis of light elements, H, C, N and O, in thin, self-supporting low Z films with MeV protons in one run. Proton-proton scattering is utilized for the detection of hydrogen and backscattered protons are simultaneously analyzed for detecting ...
With the electrons of an atom varying as atoms combine to form a bond, what sets an atom different from another atom is its number of protons. This...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your to...
High-energy protons interact with the nucleus of an atom in the same way as neutrons would (via strong interaction). Low-energy protons behave differently and have a much higher probability of interacting with electrons (via Coulomb interaction). Proton beams may, however, produce less accurate ...
A chemical element is a pure chemical substance consisting of one type of atom distinguished by its atomic number, which is the number of protons in its nucleus. The term is also used to refer to a pure chemical substance composed of atoms with the same number of protons.[1] Common exampl...
25 °C (77 °F), is one of the densest metals known. A possible explanation for the fact that these metals show a number of different crystal forms is that the electrons in the 5forbitals mix with those in the 6dorbitals and consequently form a number of hybrid electronic states of ...
If you look at the periodic table the light elements usually have close to a 1:1 ratio of protons to neutrons. Starting with Scandium (atomic number 21) they begin to deviate significantly. Considerin The most common group of minerals are...
Notice how early in the table it occurs; with just 22 protons, it's made of relatively small and light atoms. It's positioned right next to vanadium (V), so its atoms are of similar size, and that's why the two elements form many useful alloys. Key data Melting point: 1660°C (...
An atom has a mass number of 25 and 13 neutrons. What is the atomic number of this atom? Express your answer as an integer. Consider a neutral atom with 69 protons and 80 neutrons. What is the atomic number of this element? Identify the mass number and atomic number for the follow...
Why technetium is radioactive has to do with the way that protons and neutrons fit together in the nucleus. It's reasonably well understood why technetium can't find a stable configuration, and I think it's fair to say that it boils down to rotten luck. Here's an article about it. Te...