Question

question 8 of 10
which of the following ideas did john dalton teach?
a. that matter was made of indivisible particles
b. that atoms contained smaller particles
c. that mass and energy were related
d. that matter was made up of mostly space

Explanation:

John Dalton's atomic theory proposed that matter is composed of indivisible particles called atoms. Option B was discovered later (e.g., electrons within atoms). Option C is related to Einstein's work ($E = mc^{2}$). Option D is not Dalton's idea.

Answer:

A. That matter was made of indivisible particles