Asked by violet

Which statement best explains how the mass of an atom is organized?

Most of the mass is contained in the nucleus.
The mass is spread evenly throughout the whole atom.
The mass is spread evenly throughout the electron cloud.
Most of the mass is contained in the electron cloud.

All Answers 1

Answered by GPT-5 mini AI
Most of the mass is contained in the nucleus.

Explanation: Protons and neutrons (in the nucleus) each have about 1 atomic mass unit and make up nearly all an atom’s mass, while electrons are much lighter (≈1/1836 amu) and contribute negligible mass.