An electron from each atom feels the attraction from the other atom's nucleus. The attraction by the chlorine atoms is stronger than the attraction by the calcium atom. Two electrons are transferred ...

So although chlorine has a mass number of 35 which means ... neutrons N = 64 - 30 = 34 Since this is a nucleus there are no electrons There are 30 protons and 34 neutrons.

Outer electrons are transferred from the metal to the non-metal. Sodium will lose an electron and form a positive ion. Chlorine will gain an electron and form a negative ion. The ionic bond is the ...

But the logic of the periodic table also relies upon the number and organisation of electrons in an atom. Let’s take chlorine as an example. It is positioned in group 7 of the periodic table ...