Question

Name three different types of evidence for the existence of atoms.

a) Brownian motion, interference patterns, and spectral lines.

b) Gravitational effects, photoelectric effect, and diffraction.

c) Ionization, chemical reactions, and spectral lines.

d) Photoelectric effect, Compton scattering, and wave-particle duality.

Answer 1

Brownian motion, interference patterns, and spectral lines are three types of evidence for the existence of atoms.

Step-by-step explanation:

Three different types of evidence for the existence of atoms are:

1. Brownian motion: The random motion of particles suspended in a fluid due to the bombardment of atoms or molecules in the fluid.
2. Interference patterns: The patterns formed when waves interact with each other, providing evidence of the existence of atoms as the fundamental building blocks of matter.
3. Spectral lines: The specific wavelengths of light emitted or absorbed by atoms, which can be observed and analyzed to determine the presence and characteristics of different elements.