Which property is best to use when determining the strength of an ionic bond in a solid?

The correct answer is lattice energy. It is the best property to use when determining the strength of an ionic bond in a solid.

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If a hydrogen atom is neutral, it must also have  one electron. an oxygen atom (o) has an atomic number of eight (8). this means a neutral oxygen atom has eight protons and eight electrons. the element actium (ac) has an atomic number of 89, so it has 89 protons and 89 electrons in a neutral atom