Problem: In the following pair of binary compounds determine which one is a molecular substance and which one is an ionic substance. SiF4 and LaF3.

FREE Expert Solution

We are asked to determine which one is a molecular substance and which one is an ionic substance between SiF4 and LaF3.

Let’s first define an ionic and molecular bond:

Ionic Bond

involves the transferring of an electron from one element to another element
positively charged ion + negatively charged ion

metal → usually is the positively charged ion (+)
nonmetal → usually is the negatively charged ion (-)
metal(or polyatomic ion) + nonmetal (or polyatomic ion)


Covalent (or Molecular) Bond

involves the sharing of electron(s) between elements

nonmetal + nonmetal

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Problem Details

In the following pair of binary compounds determine which one is a molecular substance and which one is an ionic substance. SiF4 and LaF3.

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Chemical Bonds concept. You can view video lessons to learn Chemical Bonds. Or if you need more Chemical Bonds practice, you can also practice Chemical Bonds practice problems.