Calculate the Mass Defect for an Atom Of ${ } _ { 8 } ^ { 17 } \mathrm { O }$

Calculate the mass defect for an atom of ${ } _ { 8 } ^ { 17 } \mathrm { O }$ whose isotope mass is 16.9991 g/mol. mass of proton ( ${ } _ { 1 } ^ { 1 } p$ )
1.00783 g/mol
Mass of neutron ( ${ } _ { 0 } ^ { 1 } \mathbf { n }$ )
1.00867 g/mol

A) 0.153 g/mol
B) 0.152 g/mol
C) 0.148 g/mol
D) 0.447 g/mol
E) 0.142 g/mol