barium oxide is a binary ionic compound. it is used in special camera lenses. write the chemical formula of…
barium oxide is a binary ionic compound. it is used in special camera lenses. write the chemical formula of barium oxide. refer to a periodic table.
Answer
Explanation:
Step1: Determine barium ion
Barium (Ba) is in Group 2 of the periodic table. It loses 2 electrons to form a $Ba^{2 + }$ ion.
Step2: Determine oxide ion
Oxygen (O) is in Group 16 of the periodic table. It gains 2 electrons to form an $O^{2 - }$ ion.
Step3: Write the formula
For a neutral ionic compound, the charges must balance. The ratio of $Ba^{2 + }$ to $O^{2 - }$ is 1:1. So the chemical formula is $BaO$.
Answer:
$BaO$