Calculating Charge of Radon Nucleus

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The total charge of a radon nucleus, which contains 86 protons, is positive due to the protons' positive charge. The charge can be calculated by multiplying the number of protons (86) by the charge of a single proton, approximately +1.6 x 10^-19 C. It’s important to remember that while electrons have a negative charge, they are not part of the nucleus and do not factor into this calculation. Rounding issues or unit misunderstandings may lead to incorrect answers, so clarity on the required units is essential. Ultimately, the correct charge of the radon nucleus is +1.376 x 10^-17 C.
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Hi, this problem is killing me.

What is the total charge of the radon nucleus? (The neutral radon atom has 86 electrons.)

The units is in Coulombs so I figured since they were asking for the charge of just the nucleus then it would be 86 protons times -1.6x10^-19 C. But that didn't work, I've tried every answer I can think of but it isn't working. (its like an online homework thing...i have only a few tries left and i need this answer to continue the rest) Please please help! Thanks!
 
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protons have a positive charge?
 
yes...protons are positive and electrons are negative but electrons aren't in the nucleus so that's why i was using protons
 
In your original post you are saying the proton charge is negative... make sure you are putting in a positive number. Could it be a rounding issue? Since the exact charge of the electron is: −1.602 176 53(14) × 10−19 C thus making the proton have charge the opposite of that? Is your answer supposed to be in Coulombs? or in some other unit system?
 
thanks for your help, i finally got it!
 
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