Essential Chemistry for IGCSE - Structure And Bonding (Section 1 - No. 7)
Which of the following pairs of atoms would most likely form a covalent bond?
Sodium and Chlorine
Magnesium and Oxygen
Hydrogen and Oxygen
Potassium and Fluorine
توضیح
Covalent bonds are formed between nonmetals, in this case Hydrogen and Oxygen.