Question

which statement(s) about electrons is/are true? select all that apply a when they were first discovered, they were named \corpuscles.\ b they have a tiny but significant mass. c they have a negative charge. d they have a unique charge - to - mass ratio depending on the element.

Explanation:

Electrons were first called "corpuscles". They have a negative charge and a unique charge - to - mass ratio that is consistent across elements, not depending on the element. Their mass is extremely tiny.

Answer:

A. When they were first discovered, they were named "corpuscles."
C. They have a negative charge.
D. They have a unique charge - to - mass ratio.