Question

1. a carbon atom is shown in the model.

based on the model, which statement about the electrons in atoms is true?
a) they are similar in size to neutrons and are packed tightly in the center of
the atom.
b) they are similar in size to neutrons and form groups with each other in the
center of the atom.
c) they are larger than the other particles and are dispersed randomly
around the center.
d) they are smaller than the other particles and are modeled predictably
around the center.

Explanation:

Electrons are much smaller than protons and neutrons. In the atomic model, electrons are shown in specific energy levels (orbits) around the nucleus (center) in a predictable way (not random). Option a and b are wrong as electrons are not in the center (nucleus has protons and neutrons). Option c is wrong as electrons are not larger.

Answer:

d) They are smaller than the other particles and are modeled predictably around the center.