Convert, using dimensional analysis, from 5.45 miles to cm (1 mi = 1.61 km)

877450 cm

Explanation:

Make a conversion table:

5.45 miles  1.61 km | 1000m | 100cm |

                      1mi        1km         1m

Multiply the top number times 5.45 miles:

5.45 x 1.61 x 1000 x 100 = 877450 cm

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.