document.write( "Question 515934: The mass of one electron is 9.11 X 10(-28) grams. A uranium atom contains 92 electrons. Find the total mass of the electrons in a uranium atom.
\n" ); document.write( "Express your answer in scientific notation. \n" ); document.write( "
Algebra.Com's Answer #344211 by Alan3354(69443)\"\" \"About 
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The mass of one electron is 9.11 X 10(-28) grams. A uranium atom contains 92 electrons. Find the total mass of the electrons in a uranium atom.
\n" ); document.write( "Express your answer in scientific notation.
\n" ); document.write( "----------
\n" ); document.write( "Use * for multiply, not x
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\n" ); document.write( "Mass of 92 electrons = 9.11E-28*92
\n" ); document.write( "= 838.12E-28
\n" ); document.write( "= 8.3812E-26 gms or
\n" ); document.write( "\"8.3812%2A10%5E-26\" gms
\n" ); document.write( "The input data had 3 significant figures
\n" ); document.write( "--> \"8.38%2A10%5E-26\" gms
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\n" ); document.write( "\"E format\" is commonly used for scientific notation.
\n" ); document.write( "It's easier to type and to say.
\n" ); document.write( "--> 8.38E-26 gms\r
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