Form 3M1 Ionic Bonding Test - March 2022

In the chemical formula for an ionic compound, which item is written first?

• positive ion

• negative ion

• subscript

• atom

Magnesium chloride is an ionic compound with the chemical formula MgCl₂.  What does the "2" tell you?

• There are 2 chloride ions for every magnesium ion

• Chloride has a 2- charge

• Chloride has a 2+ charge

• There is 1 chloride ion for every magnesium ion

Metals tend to 

• gain eletrons

• lose electrons

What is a valence electron?

• an electron found in the innermost shell of an atom.

• an electron that is found in the outermost shell of an atom.

• an electron found in the middle shell.

Which type of bond involves a complete transfer of electrons from one atom to another?

• Atomic

• Covalent

• Metallic

• Ionic

How can this chlorine atom become stable?

• by losing 7 electrons

• by gaining 1 electron

• by removing the shell

• by adding 2 electrons

What type of ion will the chorine atom MOST LIKELY form?

• cation

• anion

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

The diagram shows two potassium atoms and one sulphur atom.

How will ionic bonding occur between these atoms?

• The sulphur atom will only accept one electron and stay with 7 electrons

• Only one of the potassium atoms will lose an electron

• The sulphur atom will lose one electron and donate it to the potassium atom

• Each potassium atom will donate an electron to the sulphur atom

What charge will sulphur develop during this ionic bonding process?

• 1-

• 1+

• 2-

• 2+