Consider the following element combinations. Classify the bonds formed between each pair as ionic, polar covalent, or nonpolar covalent based solely on each element's position on the periodic table. Ba-0, Cu-Cl, N-N, Al-N, O-F, S-F, F-F, and P-F
Ionic compounds are composed of a metal and a non-metal located on the extreme sides of the periodic table. Polar covalent involves unequal sharing of electrons while non-polar covalent involves equal sharing of electrons. Covalent bonds have elements closely positioned in the table. Thus, Ba-O is ionic. Cu-Cl is ionic. N-N is composed of same atom, hence equal and non-polar. Al-N is ionic. O-F composed of different atoms is polar. S-F is polar. F-F is non-polar, P-F is polar.
The classification of bonds formed between each pair of atom is;
Ba-O; Ionic bond
Cu-Cl; Ionic bond
N-N; Non-polar covalent
Al-N; Ionic bond
O-F; Polar covalent
S-F; Polar covalent
F-F; Non-polar covalent
P-F; Polar covalent bond
Further Explanation;
Chemical bond
A bond is a type of force that is formed between atoms of different through the sharing or transfer of electrons.
Types of chemical bonds.
Ionic bond
This is a type of bond that occurs between metal ions and non-metal ions. Ionic bond occurs as a result of transfer of electrons from one metal atom to another non-metal atom.
After the transfer of electrons, metal atom loses electron to form a cation while the non-metal atom gains electrons to form an anion.
Covalent bond
This is a type of bond that is formed between non-metal atoms. It is formed as a result of sharing electrons between non-metal atoms involved.
When atoms involved contribute equal number of electrons to the bond formation, the type of bond is known as covalent bond
A covalent bond may be a dative covalent bond, when the shared electrons come from one atom.
Polar covalent bonds
Polar covalent bonds involves uneven sharing of electrons between a non-metal atom and another non-metal atom.
Electrons spend more time around one of the atoms involved in bonding than the other atom.
The uneven distribution of electrons or difference in electronegativity between atoms bonded to each other is referred to as polar bond.
Examples of polar covalent molecules, S-F, O-F, etc.
Non-polar covalent bonds
It is a type of covalent bodn in which two atoms share a pair of electrons equally with each other.
The electronegativity of the two atoms involved in non-polar covalent are equal.
