What explains the relationship among elements, compounds & mixtures

Express the following number in scientific notation. 0.026890 =

Based on its chemical properties, identify the position of each chemical family on the periodic table.

Scientists often have to deal with numbers that are either very large or very small. for example, the radius of the sun is approximately 696,000 kilometers, while bacterial cells are as small as 1.9 × 10-4 millimeters. express each number in an alternate form.