Use the radius of a rubidium atom from the table below to calculate the number of rubidium atoms in a row 6.00 cm long. assume that each rubidium atom touches the ones next to it.

atoms?

The answer to your question is:    # of atoms = 2.42 x 10¹⁰

Explanation:

Data

radius = 248 pm

row = 6 cm long

Conversion

                      1 pm 1 x 10 ⁻¹⁰ cm

                 248 pm  x

                     x = (248 x 1 x 10⁻¹⁰) / 1

                     x = 2.48 x 10⁻¹⁰ cm

Divide

                   # of atoms = 6 / 2.48 x 10⁻¹⁰

                  # of atoms = 2.42 x 10¹⁰

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