Respuesta :
Angstroms is a unit used for 10^-10 It means that one meter will have 10^10 Angstroms or 1 Angstroms = 10^-10 meters the given radius of barium atom is 2.22 X10^-10 m This will be equal to 2.22 Angstroms.
Solution:
Angstroms is defined as a unit of length equal to one hundred-millionth of a centimeter, 10–10 meter, used mainly to express wavelengths and inter atomic distances.
Therefore,
1 angstroms=10 -10 m
2.22*10^ -10 m=2.22*10 -10 /10 -10
=2.22 angstroms
