Respuesta :
If an atom has 5 protons, 5 neutrons, and 3 electrons, the amom's charge is A. +2. charge=protons-electrons.
Let's see the charge of each particle first:
- proton: charge +1
- neutron: charge 0
- electron: charge -1
We have 5 protons, 5 neutrons and 3 electrons, so the total charge of the atom is:
[tex] Q=5 \cdot (+1) + 5 \cdot (0) + 3 \cdot (-1) =5+0-3=+2 [/tex]
So, the correct answer is
A. +2