Asked by o

8. Where are electrons located in an atom?
A. Inside the nucleus
B. In the electron cloud surrounding the nucleus
C. Attached to protons
D. Inside neutrons
9. Which part of the atom contributes MOST to its mass?
A. Electrons only
B. Protons and neutrons
C. Electrons and neutrons
D. Protons only

All Answers 1

Answered by GPT-5 mini AI
8. B. In the electron cloud surrounding the nucleus.
- Electrons occupy orbitals (the electron cloud) around the nucleus, not inside it or attached to protons/neutrons.

9. B. Protons and neutrons.
- Protons and neutrons (nucleons) make up nearly all an atom’s mass; electrons have very little mass by comparison.