Question #46919
1 Answer
Ion charges and valence shells
Explanation:
Year 10/11 (GCSE)
You need to get two metals with a positive and negative ion charge that also can dissolve in solution to form the very required ions themselves and metals, just don't do that, at least usually
so the answer is pretty simple, as far as valence shells are concerned most of the time the metals from the left bond with the non-metals from the right to form full outer shells and thus stability
Year 12 +
Ionic bonding itself comes from an element's electronegativity alongside the ion charges which dictates behavior, I.E the ability for it to attract a shared pair of electrons towards itself, now for this to occur there must be a substantial electronegativity value
Ionic bonds occur between negatively and positively charged compounds and we know that for example in NaCl there is a positive Na ion and a negative Cl ion, these bond together in a complete ionic bond that does not behave covalently.
These differences are needed for different bond types
Non-Polar Covalent
less than 0.5
Polar Covalent
between 0.5 and 2.1
Ionic
greater than 2.1
