Final answer:
Electrons are the very low mass particles with a negative charge found in atoms.
Step-by-step explanation:
The very low mass particle with a negative charge found in atoms is electrons. Electrons are tiny subatomic particles that carry a negative charge and are often represented as e with a superscript indicating the negative charge. They have a mass of 9.11 x 10^-31 kg and a charge of -1.6 x 10^-19 C.