Lead will always have 82 protons. If it has a 2+ charge, that means there are 2 more protons than electrons, so there are 80 electrons.
Mn has 25 protons.
Fe 2+ (Iron) has... 26 protons 24 electrons 30 neutrons
Magnesium has 12 protons and electrons and 12, 13 or 14 neutrons, depending on the isotope.
In Li plus 1, the element is lithium (Li) which has 3 protons. Since it has a +1 charge, it means it has lost one electron, so it has 2 electrons.
Cu2+ has 29 electrons (since copper has 29 protons) and 27 protons, after losing 2 electrons to become a positively charged ion.
19 Protons and 20 electrons
11 protons and 10 electrons
Mn has 25 protons.
The ion carbon C4+ has 6 protons and 2 electrons.
Fe 2+ (Iron) has... 26 protons 24 electrons 30 neutrons
Magnesium has 12 protons and electrons and 12, 13 or 14 neutrons, depending on the isotope.
In Li plus 1, the element is lithium (Li) which has 3 protons. Since it has a +1 charge, it means it has lost one electron, so it has 2 electrons.
Cu2+ has 29 electrons (since copper has 29 protons) and 27 protons, after losing 2 electrons to become a positively charged ion.
protons plus neutrons
The ion Ce(3+) of the isotope Ce-140 has 58 protons, 82 neutrons and 55 electrons.
ZnCl2 is not a element. It is an compound. however Zn contains 30 protons.
The number of protons is 30, the number of electrons is 28, the number of neutrons is different for each isotope.