Ionic Bond

An example of an ionic compound is Sodium Chloride, which is made from Na⁺ and Cl^- ions. Why do these ions form an ionic bond?

• They have like charges

• They are from the same group

• They are from the same period

• They have opposite charges

Which of the following is true for ionic bonding & ionic compounds? (3 correct statements)

• They must be made of ions with like charges.

• The negative ion must be written first.

• Compounds must have an overall charge of zero.

• They are made of metals and nonmetals.

• The positive ion must be written first.

Which properties are all characteristics of ionic compounds?

• solids with high melting and boiling points

• soft solids which are highly malleable

• when solid, the ions are held in place so the compounds cannot conduct electricity

• conduct electricity when dissolved or molten

Tags

NGSS.HS-PS1-3

Why do ionic compounds NOT conduct electricity when they are in their solid state?

• Their ions are free to move.

• Their ions are held in fixed positions.

• Their electrons are free to move

• Their electrons are held in a fixed state

Ionic compounds conduct electricity when dissolved in water. Which statement below best explains the property?

• Ions are free to move.

• Electrons are free to move.

• Bonds are strong.

• There are weak intermolecular forces of attraction.

Why do ionic compounds have high melting and boiling points?

• Their ions are free to move.

• Their ions are held in fixed positions.

• They have many strong bonds which require a large amount of heat energy to overcome these strong bonds.

• They have weak bonds which require a little amount of heat energy to overcome these weak bonds.

Tags

NGSS.HS-PS1-2

Which three of the following are features of ionic compounds? (click 3 boxes)

• They have bonds between metals and non-metals.

• They have bonds between two non-metals.

• They form simple molecular structures.

• They form giant ionic lattices.

• They involve the transfer of electrons.

Tags

NGSS.HS-PS1-3

Be and F can combine to form BeF₂, an ionic compound. Select ALL the true statements.

• Each Be atom loses two electrons from the outer shell.

• Each F atom gains two electrons from Be.

• The force holding the ionic compound together is electrostatic attraction.

• Each F ion has a charge of -1

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

NGSS.HS-PS1-3

Select all the true statements:

• Each outer shell electron in Cl is represented by a cross.

• In Na, the total charge is -2.

• Na+ and Cl- are held together by electrostatic attraction.

• Na+ has a full outer shell of electrons.

Tags

NGSS.MS-PS1-1

Lead Chloride is an ionic compound, made up from Pb²⁺ ions and Cl^- ions. Which is the correct formula for this compound?

• PbCl₃

• PbCl

• PbCl₄

• PbCl₂

Tags

NGSS.MS-PS1-1