In electrovalent combination there is a transfer of electron from one atom to another thus we have atom which act as donor of electrons and atom which act as acceptor of electrons
Element shoes atoms have only one or two valence requires less energy to give away these electrons. Their ease in releasing these electrons in order to attain the stable duplet or octet structure makes them very reactive such element rapidly combines with many other element and compound in their environment example are alkali metals such as sodium potassium each of their atom has only one valence electron to donate in order to obtain a stable electronic octet
In the other hand metal like fluorine chlorine are extremely reactive like the alkaline metals this is because each of their atom has seven valences electron and needs to accept one more electron to attain a stable octet configuration.
In electrovalent combination after donating their valence electron metallic particles become positively charged non metallic particles become negatively charged after acquiring extra electrons these charged particles are known as ions
Tgr number of proton that is the atomic number is unaffected byvtge transfer of electrons that occur in am electrovalent combination therefore the character of an element is unchanged by the atomic number and not by the number of electrons for example the sodium atom which donates an electron to chlorine in order to attain the octet configuration of neon still contains 11 protons, whereas a neon atom has 10 proton in its nucleus.
Very nice, I get some idea