Jawabanmu

2014-08-31T15:44:59+07:00
A. massa proton
=0,00000000000000000000167 kg
= 1,67*10^-21kg
=1,67 E-21kg.

b. massa elektron
=0,0000000000000000000000000911
=9,11 * 10^-26
=9,11 E-26


lw gk slah yaa..