Chemistry Practice Problems Ionic and Covalent Bonds Practice Problems Solution: Classify each substance as an atomic element, mole...

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Solution: Classify each substance as an atomic element, molecular element, molecular compound, or ionic compound.(a) neon(b) iodine(c) lead(d) NaI(e) PCl3(f) CF2Cl2(g) PtO2

Problem

Classify each substance as an atomic element, molecular element, molecular compound, or ionic compound.
(a) neon
(b) iodine
(c) lead
(d) NaI
(e) PCl3
(f) CF2Cl2
(g) PtO2

Solution

We’re being asked to classify each given substance as an atomic element, molecular element, molecular compound, or ionic compound. 

Let’s first differentiate an atomic elementmolecular elementmolecular compound, and ionic compound.


Atomic Element

▪ exists anytime an element is by itself

Molecular Element

▪ exists anytime the same type of element (nonmetals) are combined together (Example: S8)
▪ Recall the diatomic moleculesH2, N2, F2, O2, I2, Cl2and Br2

Covalent or Molecular Compound

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