Find the net charge of a system consisting of 206 electrons and 161 protons. express your answer using two significant figures.

-72\times 10^{-19}C[/tex]

Explanation:

Both electron and proton have the same amount of charge but signs are opposite , electron contains negative charge and proton contain positive charge

Charge on 1 electron =

So charge on 206 electron

Charge on 1 proton =

So charge on 161 electron

So charge of the system =

kepler used the data from tycho blahe (his mentor) to construct the laws of planetary motion.

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