The radius of a barium atom is 2.22e-10 m what is its radius in 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

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.