Posted by christy on Saturday, October 15, 2011 at 3:12pm.
The mass of one electron is 9.11 * 10(negative 28) grams. A uranium atom contains 92 electrons. Find the total mass of the electrons in a uranium atom. Express your answer in scientific notation.

math  Steve, Saturday, October 15, 2011 at 4:15pm
just multiply
9.11E28 * 92
838.12E28
8.3812E26