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An atom contain protons, neutrons and electrons. The number of these particles is different for each isotope.
An atom contain protons, neutrons and electrons; protons and neutrons contain quarks and gluons. The number of all these particles is specific for each isotope.
The atom of a chemical element contain protons, neutrons and electrons; the number is specific for each isotope.
All atoms of chemical elements contain protons, neutrons (excepting the isotope H-1)and electrons. The natural isotopes of bromine are 79Br and 81Br. For the list of all isotopes see the link below.
Sulfur has 16 protons and electrons; the number of neutrons is specific for each isotope: Number of neutrons in a sulfur isotope = Mass number - 16
12 electrons, 12 protons, and 16 neutrons
The isotope 12C has 6 protons, neutrons and electrons.
As all atoms Mercury contain protons, neutrons and electrons. Mercury has 80 electrons and protons and a variable number of neutrons - depending on the isotope.
Symbols of nucldes doesn't contain symbols of subatomic particles. But: the atomic number is equal to the number of neutrons. Example: 235 92U (the fissile isotope of uranium) - 235 is the mass number (sum of protons and neutrons) - 92 is the number of protons and electrons
Germanium has 32 electrons and protons; the number of neutrons is specific for each isotope. Number of neutrons in a germanium isotope = Mass number - 32
The isotope 25Na has 11 protons and electrons and 14 neutrons.
Calcium atoms have 20 protons and 20 electrons. The number of neutrons varies with the isotope.