The ion Ce(3+) of the isotope Ce-140 has 58 protons, 82 neutrons and 55 electrons.
Fe 2+ (Iron) has... 26 protons 24 electrons 30 neutrons
29 protons and 27electrons are present in Cu2+ ion.
The mass number of an atom is the number of protons plus the number of neutrons. This is is the same as the number of electrons plus the number of neutrons since the number of protons is the same as the number of electrons in an atom.
You can calculate the atomic mass by adding the number of protons and neutrons together, since electrons have a negligible mass compared to protons and neutrons. The sum of protons and neutrons will give you the atomic mass of the atom.
protons plus neutrons
The ion Ce(3+) of the isotope Ce-140 has 58 protons, 82 neutrons and 55 electrons.
The number of protons is 30, the number of electrons is 28, the number of neutrons is different for each isotope.
Fe 2+ (Iron) has... 26 protons 24 electrons 30 neutrons
29 protons and 27electrons are present in Cu2+ ion.
Carbon-12 has 6 protons, 6 neutrons, and 6 electrons. The number of protons determines the element (carbon), the number of neutrons plus protons gives the mass number (12), and in a neutral atom, the number of electrons equals the number of protons.
Protons- 30 Electrons- 30 Neutrons- 35 Zn-65 means the atomic number plus the number of neutrons equals 65. Zinc always has 30 protons; therefore, it's atomic number is 30 and it has 30 protons and electrons. The remaining number is the neutrons: 65-30= 35
The iron III ion, 56Fe3+, has 26 protons, 30 neutrons, and 23 electrons. This is derived by considering the atomic number of iron (26) along with the charge of +3, which means it has lost 3 electrons.
The mass number of an atom is the number of protons plus the number of neutrons. This is is the same as the number of electrons plus the number of neutrons since the number of protons is the same as the number of electrons in an atom.
The number of protons is 12, the number of electrons is 10, the number of neutrons is different for each isotope.
The ion Mg(2+) has 12 protons, 10 electrons and 12, 13 0r 14 neutrons depending on the isotope.
40Ca has 20 protons and 20 neutrons. Adding 2 to the atomic number increases the number of protons to 22. Since the element is still Ca, it retains its 20 neutrons. Overall, the ion has 22 protons, 20 neutrons, and 22 electrons.