Five trillion atoms can fit into the head of a pin.Which of the following is in the correct order of smallest to largest?
A) atom, nucleus, proton, electron
B) electron, proton, nucleus, atom
C) proton, electron, nucleus, atom
D) atom, electron, nucleus, proton

Question

Five trillion atoms can fit into the head of a pin.Which of the following is in the correct order of smallest to largest? 
A) atom, nucleus, proton, electron 
B) electron, proton, nucleus, atom 
C) proton, electron, nucleus, atom 
D) atom, electron, nucleus, proton

Quizplus · Accepted Answer

The electron is the smallest particle and orbits around the nucleus. The nucleus consists of protons and neutrons. An atom consists of a nucleus (protons and neutrons) and electrons orbiting around it. Therefore, the correct order from smallest to largest is electron, proton, nucleus, and atom. This is consistent with option B.

Five Trillion Atoms Can Fit into the Head of a Pin.Which