This energy level model shows two electrons on the first energy level and six electrons on the second energy level. Since this atom has a total of eight electrons, it also has eight protons ... 2nd ...
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Two physicists discovered special properties of stable atoms with 'magic numbers' of protons and neutrons 75 years agoThe atom is a complex system of particles. It's made up of a central nucleus consisting of protons and neutrons, called nucleons, with electrons orbiting around the nucleus. Nobel prize-winning ...
Number of protons Z = 30 Number of protons + neutrons A = 64 Number of neutrons N = 64 - 30 = 34 Since this is a nucleus there are no electrons There are 30 protons and 34 neutrons.
The atom is a complex system of particles. It’s made up of a central nucleus consisting of protons and neutrons, called ...
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