what is the net charge of an atom that has 12 protons, 13 neutrons, and 13 electrons?\n0\n+1\n-1\n-2

Explanation:

Step1: Determine charge of protons

Protons have a charge of +1 each. With 12 protons, total positive charge is $12\times(+ 1)=+12$.

Step2: Determine charge of electrons

Electrons have a charge of -1 each. With 13 electrons, total negative charge is $13\times(-1)= - 13$.

Step3: Neutrons have no charge

Neutrons do not contribute to the net - charge, so we ignore them.

Step4: Calculate net charge

Net charge = Total positive charge+Total negative charge. So, net charge=$+12+( - 13)=-1$.

Answer:

C. -1