Question on: SS3 Physics - Electricity I

Electric charge is a fundamental property of matter that arises from the presence or absence of electrons. Electric charge is measured in units of coulombs (C), and the charge on a single electron is -1.602 × 10-19 C. Charge can be positive, negative, or neutral. The positive charge is associated with the absence of electrons, while the negative charge is associated with the presence of extra electrons. Neutral objects have an equal number of positive and negative charges.