Methane CH[tex]_{4}[/tex] does not have ionic bonds. Because of the close value of electronegativity of the carbon and hydrogen atoms the electrons are shared forming covalent bonds.
Answer:
[tex]CH_4[/tex] is not likely to have ionic bonds
Explanation:
Ionic bond is formed between a metal and a non metal.
[tex]NaCl, LiF[/tex] and [tex]MgF_2[/tex] are examples in which we see metal bonded with a non-metal.
Na, Li, Mg are all metals and Cl, F are non metals.
[tex]CH_4[/tex] contains only non metals. Covalent bond is the bond present among non metallic compounds.
We can identify a bond as an ionic bond or a covalent bond based on the electronegativity values of the atoms present in it.
For example [tex]H_2 S[/tex]
Hydrogen --> electronegativity value is 2.1
Sulfur --> electronegativity value is 2.5
∆E, the electronegativity difference is 2.5 - 2.1 = 0.4
So, It is a non polar covalent bond present in [tex]H_2 S[/tex]
Examples :
The electronegative values of H is 2.1
F is 4.0
O is 3.5
N is 3.0
∆E value of HF Hydrogen bond is
4.0 - 2.1 = 1.9
∆E value of H2O Hydrogen bond is
3.5 - 2.1 = 1.4
∆E value of NH3 Hydrogen bond is
3.0 - 2.1 = 0.9
∆E value between 0.5 to 1.7 is a polar covalent bond
∆E value btween 0 to 0.4 is a non polar covalent bond
∆E above 1.7 is an ionic bond
