A praticular neutral uranium atom has 92 protons,143 neutrons, and an atomic mass of 235. How many electrons does the atom have?
A. 92
B. 143
C. 235
D. 337
Is the answer D?
Thanks
2 answers
Protons have a +1 charge. Electrons have a -1 charge. If the atom is to be neutral the number of protons MUST be the same as the number of electrons.
Of course.
4 answers