Calculate the Estimated Density of the Nucleus Of )
A) Greater Than

Calculate the estimated density of the nucleus of ${ } _ { 38 } ^ { 90 } \mathrm { Sr } ? \left( m _ { \text {neutron } } \approx m _ { \text {proton } } = 1.67 \times 10 ^ { - 27 } \mathrm {~kg} \right.$ )

A) greater than $3.0 \times 10 ^ { 20 } \mathrm {~kg} / \mathrm { m } ^ { 3 }$
B) $2.3 \times 10 ^ { 17 } \mathrm {~kg} / \mathrm { m } ^ { 3 }$
C) $2.0 \times 10 ^ { 15 } \mathrm {~kg} / \mathrm { m } ^ { 3 }$
D) $2.1 \times 10 ^ { 19 } \mathrm {~kg} / \mathrm { m } ^ { 3 }$
E) $90 \mathrm {~kg} / \mathrm { m } ^ { 3 }$