QuestionWrite the formula for the binary ionic compound made of barium and oxygen. Formula: .
Studdy Solution
STEP 1
Assumptions1. The compound is binary, meaning it is composed of two different elements.
. The elements involved are barium (Ba) and oxygen ().
3. The compound isionic, meaning it is formed by the transfer of electrons from one atom to another.
4. The charge of an ion is determined by the number of electrons it has gained or lost. In anionic compound, the sum of the charges of all the ions must be zero.
STEP 2
First, we need to determine the charges of the ions formed by barium and oxygen. For this, we refer to the periodic table. Barium, being in group2, forms a +2 ion. Oxygen, being in group16, forms a -2 ion.
STEP 3
Now, we need to balance the charges. In anionic compound, the total positive charge must equal the total negative charge. In this case, the charges are already balanced, as the +2 charge of barium ion is balanced by the -2 charge of the oxygen ion.
STEP 4
Finally, we write the formula of the compound, placing the cation (positive ion) first and the anion (negative ion) second. Since the charges are balanced, no subscripts are needed.
So, the correct formula of the binaryionic compound composed of barium and oxygen is .
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