Ionic Compounds (Binary with Main Group Metals)

Front

What does the subscript in a chemical formula indicate about the number of ions present in an ionic compound?

Back

The subscript indicates the number of ions of that element present in the compound. For example, in MgBr₂, the subscript '2' indicates there are 2 bromide ions for every 1 magnesium ion.

Front

What is the process called when an atom gains electrons to become an ion?

Back

The process is called reduction.

Front

What is the oxidation number of barium in ionic compounds?

Back

The oxidation number of barium in ionic compounds is +2.

Front

What is the name of the ionic compound with the formula Ba₃P₂?

Back

The name of the compound is barium phosphide.

Front

What is the name of the ionic compound with the formula Li₃N?

Back

The name of the compound is lithium nitride.

Front

How do you determine the charge of a main group metal in an ionic compound?

Back

The charge of a main group metal can be determined by its group number in the periodic table. For example, elements in Group 2 have a charge of +2.

Front

What is the general formula for binary ionic compounds?

Back

The general formula for binary ionic compounds is AxBy, where A is a cation and B is an anion, and x and y are the subscripts that balance the charges.

Front

What is the significance of oxidation numbers in ionic compounds?

Back

Oxidation numbers help determine the ratio of ions in a compound and ensure that the overall charge of the compound is neutral.

Front

What type of bond is formed between the ions in an ionic compound?

Back

Ionic bonds are formed through the electrostatic attraction between positively charged cations and negatively charged anions.

Front

What is the charge of a bromide ion?

Back

The charge of a bromide ion is -1.