Physics

Problem

Approximately how many lead nuclei

(A = 207)

placed side by side would just span a length of

1\,\text{μm}

? (Use

R_0 = 1.2\,\text{fm}

.) a)

7 \times 10^{6}

3 \times 10^{7}

7 \times 10^{7}

1.4 \times 10^{8}