A particular neutral uranium atom has 92 protons, 143 neutrons, and an atomic mass of 235. How many electons does the atom have?
a. 92
b. 143
c. 235
d. 337
Is the answer A?
yes, electrons in an atom equals the atomic number
Thank you so much I was going crazy.
*flutters wings*
The Atomic mass then?
So it's 235?
*shakes snout and disappears*
To determine the number of electrons in a neutral atom, we need to know its atomic number, which is equal to the number of protons. In this case, the atom has 92 protons. Therefore, the correct answer is a) 92.
To double-check the answer, you can remember that a neutral atom has an equal number of protons and electrons. This is because the positive charge of the protons is balanced by the negative charge of the electrons. So, for this uranium atom to be neutral, it would need to have 92 electrons.