The silicon-29 isotope is used extensively in Nuclear Magnetic Resonance or NMR spectroscopy. It has 14 electrons, 14 protons and 15 neutrons.
Radium has 88 electrons. The number of neutrons is different for each isotope: Number of neutrons = Atomic mass of an isotope - 88
The natural isotope of carbon 13C (abundance 1,1 %) has 6 protons, 6 electrons and 7 neutrons.
Boron has 5 electrons and protons; the number of neutrons is specific for each isotope. Number of neutrons in a boron isotope = Mass number - 5
The isotope carbon-12 has 6 protons, neutrons and electrons.
Promethium has 61 protons and electrons; For each isotope the number of neutrons is different. Number of neutrons = Mass number of an isotope - 61
Radium has 88 electrons. The number of neutrons is different for each isotope: Number of neutrons = Atomic mass of an isotope - 88
There are 7 protrons, 7 electrons and 7 electrons in an atom of nitrogen.
The natural isotope of carbon 13C (abundance 1,1 %) has 6 protons, 6 electrons and 7 neutrons.
Boron has 5 electrons and protons; the number of neutrons is specific for each isotope. Number of neutrons in a boron isotope = Mass number - 5
The isotope carbon-12 has 6 protons, neutrons and electrons.
Promethium has 61 protons and electrons; For each isotope the number of neutrons is different. Number of neutrons = Mass number of an isotope - 61
The atomic number of francium is 87. This means that it has 87 each of protons and electrons. The number of neutrons depends on the isotope, but the most common one, Fr-223, has 223 - 87 = 136 neutrons. (The number of neutrons is always the isotope mass number minus the atomic number.)
Cl-35 isotope has 18 neutrons Cl-37 isotope has 20 neutrons
Radium has 88 electrons. The number of neutrons is different for each isotope: Number of neutrons = Atomic mass - 88 The most stable and known isotope of radium, 226Ra, has 138 neutrons.
The isotope with 15 protons, 16 neutrons, and 15 electrons is oxygen-31.
Protons-68 Electrons-68 Neutrons-About 99
Nickel has 28 electrons and protons; the number of neutrons is specific for each isotope. Number of neutrons in a nickel isotope = Mass number -28