Question

Calculate the net charge on a substance consisting of a combination of 7.3 × 1013 protons and 9.0×1013 electrons. The elemental charge is 1.6 × 10−19 C

Answer 1

The net charge on the substance is
`-1.7 * 10^13.`

Step-by-step explanation:

The net charge on a substance is the difference between the total number of protons and electrons.

In this case, the substance consists of
`7.3 * 10^13` protons and
`9.0 * 10^13`electrons.

Since protons have a positive charge and electrons have a negative charge, we can calculate the net charge by subtracting the number of electrons from the number of protons.

The net charge =
`(7.3 * 10^13) - (9.0 * 10^13)`

After calculating, the net charge is
`-1.7 * 10^13.`

Answer 2

Net Charge = -2.72 x 10^-6 C

Step-by-step explanation:

Net charge = (Charge on protons – Charge on electrons) x Elemental Charge

Net Charge = (7.3 – 9.0) 10^13 x 1.6 x 10^-19

Net Charge = -2.72 x 10^-6 C (overall net charge is negative because of more number of electron than protons)