Atomic weight is neutrons plus protons. If the atomic weight is 197, we subtract the number of protons which we know is 79 because that's what makes it gold, we get 118.
Helium has two protons and two neutrons (and two electrons).
The most stable isotope of sulfur (S-32) has 16 electrons, 16 protons and 16 neutrons.
For each isotope of bohrium the number of neutrons is different. Number of neutrons = Mass number of an isotope of Bh – 107
To be a carbon atom or ion, it must contain 6 protons. There may be either 6, 7 or 8 neutrons along with the protons in the nucleus.
The atomic number of iron is 26 whereas the mass number of it is 56. Therefore it has 26 electrons and 30 neutrons (56-26).
For gold (Au), atomic number = 79, so it has 79 protons and 79 electrons. The number of neutrons can vary depending on the isotope of gold, but a common isotope, Au-197, has 118 neutrons.
146 neutrons.
Neutrons - 118 Protons/electrons - 79
In the most common isotope of silicon, there are 14 neutrons.
Number of neutrons = Mass number of an isotope - 93The most common isotope has 144 neutrons.
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The most common isotope , berkelium-249, has 152 neutrons.Number of neutrons = Mass number of an isotope - 97
The most common isotope , berkelium-249, has 152 neutrons.Number of neutrons = Mass number of an isotope - 97
6 protons. The number of neutrons varies, but the most common isotope has 6 neutrons.
The most common isotope of Neon has 10 neutrons.
The most common isotope of uranium is uranium-238 with 146 neutrons.
Boron has 5 neutrons and 5 protons for its most common isotope