document.write( "Question 214603: Element QX has 3 naturally occurring isotopes. QX-18 occurs 72.03% of the time, Qx-17 occurs 22.94% of the time and Q-16 occurs 5.03% of the time. What is the average atomic mass number that would be reported on the periodic table?
\n" );
document.write( "
\n" );
document.write( "thank you \n" );
document.write( "
Algebra.Com's Answer #162060 by edjones(8007)![]() ![]() You can put this solution on YOUR website! 18*.7203 + 17*.2294 + 16*.0503 \n" ); document.write( "=17.67 \n" ); document.write( ". \n" ); document.write( "Ed \n" ); document.write( " |