Respuesta :
Answer:
• Sodium and oxygen
• Manganese and chlorine
• Oxygen and calcium
• Chlorine and sodium
Explanation:
Ionic compounds are formed when a very electronegative element (that is, that has high electronic affinity), comes into contact with a low electronegative or very electropositive element (it is said to have low ionization potential). Thus, an electron transfer takes place, from the electropositive element, remaining with less electrons than its original form and forming a cation, towards the most electronegative, which is left with more electrons than the initial ones, and forms an anion. The difference in charges between the elements causes the union to occur due to the opposite electrostatic forces between them.
This type of bonding occurs between metals with nonmetals, because among these there is a large difference in electronegativity, and the transfer of electrons occurs from metals, which form cations, to nonmetals, which remain as anions.
Therefore, the pairs of elements that can form this type of compound are the pairs that contain a metal and a nonmetal. They are:
• Sodium and oxygen
• Manganese and chlorine
• Oxygen and calcium
• Chlorine and sodium
The other pairs described in the statement (Nitrogen and iodine - Potassium and calcium), are formed by elements of the same family (two nonmetals and two metals, respectively), so there is no significant electronegativity difference so that ionic bonding occurs.
The elemental pairs that form ionic compounds are Sodium and Oxygen, Manganese and Chlorine, Oxygen and Calcium, and Chlorine and Sodium.
Ionic bonds are the weaker electrostatic interactions formed by the transfer of electrons in the charged elemental species. The ionic bonds are generally formed between a metal and a nonmetal.
- Sodium and Oxygen:
Sodium: Alkali metal
Oxygen: Nonmetal
Forms Ionic compound.
- Potassium and Calcium:
Potassium: Alkali metal
Calcium: Alkali earth metal
Forms metallic bond.
- Nitrogen and Iodide:
Nitrogen: Nonmetal
Iodide: Halogen Nonmetal
Do not form ionic bonds.
- Manganese and Chlorine:
Manganese: Transition metal
Chlorine: Halogen Nonmetal
Form ionic bond.
- Oxygen and Calcium:
Oxygen: Nonmetal
Calcium: Alkali earth metal
Forms ionic compounds.
- Chlorine and Sodium:
Chlorine: Nonmetal
Sodium: Metal
Forms ionic compounds.
For more information about ionic compounds, refer to the link:
https://brainly.com/question/10748806
