Calculate the net charge on a substance consisting of a combination of 6.8 multiplied by 1013 protons and 4.6 multiplied by 1013 electrons.
To calculate the net charge on a substance, we need to find the difference between the number of protons and the number of electrons.
The charge on a proton is +1, while the charge on an electron is -1. Therefore, each proton contributes a positive charge of +1, and each electron contributes a negative charge of -1.
Given that you have 6.8 x 10^13 protons and 4.6 x 10^13 electrons, we can calculate the net charge as follows:
Net charge = (Number of protons x charge per proton) + (Number of electrons x charge per electron)
Net charge = (6.8 x 10^13) x (+1) + (4.6 x 10^13) x (-1)
Now, let's calculate this expression:
Net charge = 6.8 x 10^13 - 4.6 x 10^13
To subtract these values, we need to ensure that the exponents are the same. In this case, both numbers are multiplied by 10^13, so we can subtract them directly:
Net charge = (6.8 - 4.6) x 10^13
Net charge = 2.2 x 10^13
Therefore, the net charge on the substance is 2.2 x 10^13.