QuestionDetermine the formula for the binary ionic compound made of rubidium and oxygen. Formula: Rb 2 O
Studdy Solution
STEP 1
Assumptions1. The compound is binary, meaning it is composed of two different elements.
. The elements involved are rubidium (Rb) and oxygen ().
3. Rubidium is a metal and oxygen is a non-metal, so they form anionic compound.
4. The charges of the ions in the compound must balance each other out.
STEP 2
etermine the charges of the ions. Rubidium (Rb) is in group1 of the periodic table and thus forms a +1 ion. Oxygen () is in group16 (or6A) and thus forms a -2 ion.
STEP 3
To balance the charges, we need two rubidium ions for every oxygen ion. This is because the total positive charge from the rubidium ions must equal the total negative charge from the oxygen ions.
STEP 4
Write the formula of the compound by placing the symbol of the metal (rubidium) first, followed by the symbol of the non-metal (oxygen), with the appropriate subscripts to indicate the number of each ion in the compound.
The correct formula of the binaryionic compound composed of rubidium and oxygen is .
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