Calculate the Estimated Nuclear Radius Of ${ } _ { 38 } ^ { 90 } \mathrm { Sr } ?$

Multiple Choice

Calculate the estimated nuclear radius of ${ } _ { 38 } ^ { 90 } \mathrm { Sr } ?$

A) $5.4 \times 10 ^ { - 15 } \mathrm {~m}$
B) $4.0 \times 10 ^ { - 15 } \mathrm {~m}$
C) $1.1 \times 10 ^ { - 13 } \mathrm {~m}$
D) $1.2 \times 10 ^ { - 15 } \mathrm {~m}$
E) $3.3 \times 10 ^ { - 13 } \mathrm {~m}$