Write the names for the following compounds pcl5

Phosphorus pentachloride.

Explanation

There are two elements in PCl₅:

P- Phosphorus;Cl- Chlorine.

Both P and Cl are nonmetals. Nonmetals tend to share electrons to form covalent molecules. PCl₅ is likely to be a covalent molecule. The name of PCl₅ and other molecules of two elements comes in a couple of parts:

First prefix- How many atoms of the first element (P in this case) in the molecule? Di- for two, tri- for three, etc. There's no mono- here. Omit the first prefix if there's only one atom of the first element in the molecule (as in this case.)Name of the first element. Phosphorus.A space in between.Second prefix- How many atoms of the second element (Cl in this case) in the molecule? Similar to the first prefix, however include "mono-" if there's only one atom of the second element in the molecule. There are five Cl atoms in each molecule. Hence the prefix "penta-."Name of the second element as if it was an anion. The anion from Cl is the chloride ion Cl⁻. Hence the name "chloride."

Combining the parts:

.

Hence the name: phosphorus pentachloride.

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