Na and Cl, Mg and O
The least ionic type of bond is a covalent bond.
Ionic bond exist between metals and nonmetals.
Only sodium and chlorine will form ionic bond. the other pair given here will form covalent bond
Generally, if the difference of electronegativity between the two elements are less than 1.7 according to Pauling's scale, they form a covalent bond or otherwise an ionic bond. Although there are exceptions such as hydrogen fluoride (which is covalent but the electronegativity difference is 1.9 approximately).
O and Cl
The least ionic type of bond is a covalent bond.
Ionic bond exist between metals and nonmetals.
Only sodium and chlorine will form ionic bond. the other pair given here will form covalent bond
Generally, if the difference of electronegativity between the two elements are less than 1.7 according to Pauling's scale, they form a covalent bond or otherwise an ionic bond. Although there are exceptions such as hydrogen fluoride (which is covalent but the electronegativity difference is 1.9 approximately).
O and Cl
O and Cl
na+ and cr by teletuby na+ and ci-
metal and nonmetal
Members of groups 1, 2, 6, 7 in the Periodic Table are most likely to form ionic compounds. It depends on what pair of elements are involved, for instance one rule of thumb is metal with nonmetal. Another, more systematic way, to assess this is to consider the difference in electronegativity between the two elements. If the electronegativity difference is 2 or more then the bond will be ionic. If the difference is less than 2 but more than 1.6 and one of the elements is a metal then there can be an ionic bond.
A metal tends to form an ionic bond with a non-metal. Metals bonding with other metals form a metallic bond, and non-metals bonding with other non-metals form a covalent bond.
Group 1 or group 2 elements with group 16 or group 17 elements. In general, if the electronegativity difference between the two atoms is more than 1.7 in Pauling's scale, then the two atoms form ionic bond.
A metal tends to form an ionic bond with a non-metal. Metals bonding with other metals form a metallic bond, and non-metals bonding with other non-metals form a covalent bond.