Ionic Compounds

Multiple Choice

Cations are positive ions and nonmetals.

• True

• False

Multiple Choice

Anions are negative ions and nonmetals.

• True

• False

Multiple Choice

Predict the formula of the compounds formed from below:

Ga⁺³ and O^-2

• $$Ga_3O_2$$  

• $$Ga_2O_3$$  

• $$O_3Ga_2$$  

• $$O_2Ga_3$$  

Multiple Choice

Predict the formula of the compounds formed from the ions below:

Mg²⁺ and Cl^-

• $$MgCl_2$$  

• $$Mg_2Cl_{ }$$  

• $$Cl_2Mg_{ }$$  

• $$ClMg_2$$  

Multiple Choice

Predict the formula of the compounds formed from the ions below:

K⁺ and O^2-

• $$O_2K$$  

• $$OK_2$$  

• $$K_2O_{ }$$  

• $$KO_2$$  

Multiple Choice

Predict the formula of the compounds formed from the ions below:

Fe³⁺ and S^2-

• $$Fe_2S_3$$  

• $$Fe_3S_2$$  

• $$S_2Fe_{ }$$  

• $$S_3Fe_2$$  

​Binary Ionic Compounds

These are ionic compounds that are made out of two types of

elements- one metal and one nonmetal.

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We've been getting the oxidation numbers of the elements by using

the periodic chart. Most of the transition elements have two or more

oxidation numbers.

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Chemistry| Subject

​Polyatomic Ion

This is a group of atoms that are bonded together, and have stolen or lost electrons. They behave like a single atom with a charge.

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Chemistry| Subject