AP Chemistry : Ionic Bonds

Study concepts, example questions & explanations for AP Chemistry

varsity tutors app store varsity tutors android store

Example Questions

Example Question #32 : Bonding And Forces

What type(s) of bond(s) is/are present in the following molecule?

RbCl

Possible Answers:

covalent

network covalent

network ionic

ionic

complex ionic

Correct answer:

ionic

Explanation:

An ionic bond is a bond between a metal (Rb) and a nonmetal(Cl)

Example Question #1 : Ionic Bonds

What type of compound is ?

Possible Answers:

Covalent

Ionic

Metallic

Polyatomic ion

Correct answer:

Ionic

Explanation:

Ionic compounds are formed between metals, which want to loose electrons, and nonmetals, which want to gain electrons. The sodium (Na) will completely transfer an electron to the chlorine (Cl), giving both atoms a complete octet without sharing electrons.

Covalent compounds generally form between two nonmetals that will both share electrons to complete their octets. Metallic compounds are built from only metals. Polyatomic ions will have a formal charge.

Example Question #2 : Ionic Bonds

Which of the following compounds is not held together by ionic bonds?

Possible Answers:

Correct answer:

Explanation:

Covalent bonds are formed when two nonmetals are bonded together. This covalent bond means that the electrons are shared by the two atoms in order to satisfy each atom's octet. There is very little difference in the electronegativities of the two atoms involved in the bond, so neither atom pulls the electrons closer to its nucleus.

Ionic bonds are formed between a metal and a nonmetal. Due to the dramatic difference between the electronegativities of metals and nonmetals, the electrons are pulled tightly to the nonmetal, and away from the metal nucleus. This results in each atom having a full octet, even though the electrons are not shared.

Carbon and oxygen are both nonmetals, so we would expect only covalent bonds in carbon dioxide.

Example Question #3 : Ionic Bonds

Which of the following is not a characteristic of ionic compounds?

Possible Answers:

High boiling point

Good conductors of electricity in the aqueous state

High melting point

Comprised of atoms sharing electrons

Correct answer:

Comprised of atoms sharing electrons

Explanation:

Atoms share electrons in covalent bonds, not ionic. In ionic bonding, one or more electrons from an atom with a lower ionization energy are transferred to an atom with greater electron affinity. 

Example Question #4 : Ionic Bonds

Which of the following statements best describes ionic compounds?

Possible Answers:

Formed when molecules share electrons

Neutral particles that donate electrons

3-D arrays of charged particles

Malleable compounds that lack structural stability

Correct answer:

3-D arrays of charged particles

Explanation:

The definition of ionic compounds are three-dimensional arrays of atoms held together by strong ionic bonds. Ions are charged particles that have either gained or lost a certain number of electrons. They have great crystalline strength because of the strong electrostatic forces between the ions.

Learning Tools by Varsity Tutors

Incompatible Browser

Please upgrade or download one of the following browsers to use Instant Tutoring: