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.

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.

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.

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