contestada

our understanding of the atom has changed over time which idea that was once accepted is now consider scientifically inaccurate

A. Electrons are arranged in layers

B. An atom is a solid sphere

C. The nucleus is the center of the atom

D. Electrons have a negative charge

Respuesta :

davinioza

An atom is a solid sphere is now considered scientifically inaccurate.

So the correct answer is B.

Hope this helps,

Davinia.