1. Chemical Formula:
Barium perchlorate has the chemical formula Ba(ClO₄)₂.
2. Breakdown:
* Ba: This represents one barium atom.
* (ClO₄)₂: This represents two perchlorate ions (ClO₄⁻).
3. Oxygen Atoms:
* Each perchlorate ion (ClO₄⁻) contains four oxygen atoms.
* Since there are two perchlorate ions in the formula, we have a total of 4 oxygen atoms/ion * 2 ions = 8 oxygen atoms.
Therefore, there are 8 oxygen atoms in a formula unit of barium perchlorate.