* Charge: -1.602 x 10⁻¹⁹ Coulombs (C)

* Mass: 9.109 x 10⁻³¹ kilograms (kg)

Important Notes:

* Negative Charge: The electron has a negative charge, which is why it's attracted to the positive charge of a proton.

* Very Small Mass: Electrons are incredibly tiny! Their mass is almost negligible compared to protons and neutrons.