Question

1. drag and drop to label the atom. choices nucleus protons neutrons electrons electron cloud

Explanation:

The nucleus is at the center of the atom. Protons (positively charged) and neutrons (neutral) are in the nucleus. Electrons (negatively charged) are in the electron cloud surrounding the nucleus.

Answer:

Top - left label: nucleus; Middle - right label: protons and neutrons (protons are the green + ones, neutrons are the blue ones); Bottom - left label: electron cloud; Bottom - right label: electrons.