19 Protons and 20 electrons
11 protons and 10 electrons
29 protons and 27electrons are present in Cu2+ ion.
Mn has 25 protons.
The ion carbon C4+ has 6 protons and 2 electrons.
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.
Fe 2+ (Iron) has... 26 protons 24 electrons 30 neutrons
There are 3 protons and 2 electrons present in a lithium ion.
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.
Magnesium has 12 protons and electrons and 12, 13 or 14 neutrons, depending on the isotope.
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.