Bonding reassessment

Which of the following could NOT form an ionic compound? Check all that apply.

• Li⁺ and Cl^-

• F^- and O^2-

• Ba²⁺ and Ag⁺

• Mg²⁺ and S^2-

In an ionic bond, the ions are held together because...

• the positive nucleus of each ion attracts the other ion's negatively charged electrons

• the ions have opposite charges

• as the electron moved from one atom to another it pulled the atom along with it

• electrons are being shared

Which of the following pairs of elements could NOT react to form an ionic compound?

• Carbon and Oxygen

• Potassium and Fluorine

• Silver and Oxygen

• Aluminum and Chlorine

Ionic bonds are formed between...

• Non - metals

• A metal and a non-metal

• Metals

Which of the below is an ionic compounds?

• Ni

• MgCl₂

• H₂O

• CH₄

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

Nitrogen will form which of the following ions?

• N
• N^-3
• N^-5
• N⁺⁵

Magnesium bromide is an ionic compound with the chemical formula MgBr₂.  What does the "2" tell you?

• There are 2 bromide ions for every magnesium ion
• Bromide has a 2- charge
• Bromide has a 2+ charge
• There are 2 magnesium ions to every bromide ion

Which is the correct formula for aluminum sulfide?

• AlS

• Al₃S₂

• S₃Al₂

• Al₂S₃

What is the charge of ion "X" in CaX?

• +1

• -1

• +2

• -2