Predict whether each of the following compounds is molecular or ionic: (h) P(OH)₃.

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Identify the elements present in the compound P1OH23.

Recognize that P (phosphorus) and O (oxygen) are nonmetals, and H (hydrogen) is also a nonmetal.

Recall that molecular compounds are typically formed between nonmetals.

Consider the structure of the compound: P1OH23 suggests a complex molecular structure rather than a simple ionic lattice.

Conclude that the compound is likely molecular, as it consists of nonmetals bonded together.

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Ionic vs. Molecular Compounds

Ionic compounds are formed from the electrostatic attraction between positively and negatively charged ions, typically involving a metal and a non-metal. In contrast, molecular compounds consist of molecules formed by covalent bonds between non-metal atoms. Understanding the difference is crucial for predicting the nature of a compound.

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02:11

Ionic Compounds Naming

Chemical Formula Interpretation

The chemical formula of a compound provides information about the types and numbers of atoms present. For example, in P1OH23, the presence of phosphorus (P), oxygen (O), and hydrogen (H) suggests a molecular structure, as it contains non-metals that typically form covalent bonds.

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03:13

Intepreting the Band of Stability

Electronegativity and Bonding

Electronegativity is a measure of an atom's ability to attract and hold onto electrons. In a compound, if the difference in electronegativity between the atoms is significant, it usually indicates ionic bonding. Conversely, similar electronegativities suggest covalent bonding, which is common in molecular compounds.

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