Question

• required

1. what type of bond would exist between a hydrogen atom and an oxygen atom? (0.5 points)

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nonpolar covalent bond
polar covalent bond
ionic bond

1. what type of bond would exist between a magnesium atom and a nitrogen atom? (0.5 points) *

nonpolar covalent bond
polar covalent bond
ionic bond

1. what type of bond would exist between an aluminum atom and a gallium atom? (0.5 points)

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nonpolar covalent bond
polar covalent bond
ionic bond

Explanation:

• For the bond between hydrogen and oxygen:
• Hydrogen and oxygen have different electronegativities. Oxygen is more electronegative than hydrogen. In a covalent bond (where electrons are shared), when there is a significant difference in electronegativity between the two atoms, the electrons are not shared equally. This leads to a polar covalent bond.
• For the bond between magnesium and nitrogen:
• Magnesium is a metal (tends to lose electrons) and nitrogen is a non - metal (tends to gain electrons). When a metal and a non - metal bond, the metal donates electrons to the non - metal, forming ions. The electrostatic attraction between these ions results in an ionic bond.
• For the bond between aluminum and gallium:
• Aluminum and gallium are both metals. When two metal atoms bond, they form a metallic bond. However, in the context of the given options (non - polar covalent, polar covalent, ionic), since they are the same type of element (metals) and if we consider the covalent - like sharing of delocalized electrons in a metallic lattice (in a very simplified sense for the purpose of this question), and since there is no significant difference in electronegativity (as they are in the same group and have similar electron - sharing tendencies in a non - ionic sense), it can be approximated as a non - polar covalent bond (in the context of the given options).

Answer:

1. polar covalent bond
2. ionic bond
3. nonpolar covalent bond