Answer:
A. magnesium and fluorine
Explanation:
Ionic bond is the bond which is formed between the two oppositely charged ions and are held by the strong electrostatic attraction. This is formed between the atoms which have high differing electronegativities. It is usually the bond which is formed between a nonmetal and a metal.
Thus, A. magnesium and fluorine will form an ionic bond as magnesium is metal and fluorine is nonmetal and forms [tex]MgF_2[/tex]
Out of options, B. nitrogen and sulfur C. oxygen and chlorine, the elements mentioned are all nonmetals and can not form ionic bond.
D. sodium and aluminum both are metals and thus cannot form ionic bond.
The pairs of the element that have been capable of forming ionic bonds has been Magnesium and Fluorine. Thus, option A is correct.
The ionic bond has been the transfer of electrons between metals and nonmetals. The elements with high differences in electronegativity have been capable of forming ionic bonds.
The following pairs of elements:
A. Magnesium and Fluorine
Mg has been a metal, while F has been a nonmetal. Thus, forms an ionic bonds.
B. Nitrogen and Sulfur
N and S both are metals, thus have not able to form ionic bond.
C. Oxygen and Chlorine
O and Cl both have been nonmetals, and have not been able to form an ionic bond.
D. Sodium and Aluminum
Na and Al both are metals, and thus not able to form an ionic bond.
The pairs of the element that have been capable of forming ionic bond has been Magnesium and Fluorine. Thus, option A is correct.
For more information about the ionic bond, refer to the link:
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