An object has charge of 1 C and gains 5.0 x 10¹⁸ electrons. The net charge on the object becomes.

Given:

1. Initial charge of the object, Q_initial = +1 C.
2. Number of electrons gained, N = 5.0 x 10¹⁸.

Step 1: Calculate the Total Charge Added by the Electrons

The charge of a single electron is approximately -1.6 x 10^-19 C.

So, the total charge due to 5.0 x 10¹⁸ electrons is:

Q_electrons = N x charge of one electron

Q_electrons = (5.0 x 10¹⁸) x (-1.6 x 10^-19) C

Q_electrons = -0.8 C

Step 2: Calculate the Net Charge on the Object

The initial charge on the object is +1 C, and it gains a charge of -0.8 C due to the electrons. Therefore, the net charge is:

Q_net = Q_initial + Q_electrons

Q_net = 1 C + (-0.8 C)

Q_net = 0.2 C

Answer:

The net charge on the object becomes +0.2 C.