Ionic Bonding- Crystal , Melting & Boiling pt

The following ionic crystal has 6 Fe ions (red) and 9 O ions (blue). What is the formula for this ionic crystal?

• FeO

• Fe₃O₂

• Fe₂O₃

• Fe₆O₉

The reason that a sodium atom bonds with a chlorine atom is because

• Sodium transfers an electron to Chlorine

• oppositely charged ions form a strong electrostatic attraction

• the ions have a full outer shell

• ions are the same size

What type of forces hold on an ionic lattice together?

• Covalent bond

• Crystal lattice

• Electrostatic attraction

• Metallic bond

Which of the below is an ionic compounds?

• H₂

• MgCl₂

• CH₄

• H₂O

The following properties are all characteristics of ionic compounds EXCEPT

• high melting and boiling points

• soft

• crystal lattice structure

• conduct electricity when dissolved in water

Why do ionic compounds have high melting and boiling points?

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

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

• Their ions are free to move.

• .

  Their ions are held in fixed positions.

  bonds.

Define crystalline solid

• A solid in which the atoms CANNOT be changed.

• A pure solid that can conduct electricity.

• A pure solid that has undefined melting and boiling point

• A regular repeating, three-dimensional structure of atoms that form a crystal lattice.

The following ionic crystal has 4 Al ions (red) and 6 O ions (blue). What is the formula for this ionic crystal?

• Al₂O₃

• Al₄O₆

• Al₃O₂

• not forming ionic crystal

Which of the following metals (M) will form an ionic compound with nitrogen with the general formula M₃N₂?

• Lithium (Li)

• Aluminum (Al)

• Sodium (Na)

• Beryllium (Be)

When comparing different ionic compounds, the one with the greater charges will have a _______ magnitude of lattice energy.

• greater

• less

• Equal

• Unpredictable