Question

Our understanding of the atom has changed over time. Which idea that was once accepted is now considered scientifically inaccurate? The nucleus is the center of the atom. An atom is a solid sphere. Electrons have a negative charge. Electrons are arranged in layers.

Answer 1

“The atom is a solid sphere” is the inaccurate statement. The center of the atom is made up of the nucleus with layers of electrons orbiting it, therefore it is not a complete sphere.

Answer 2

correct answer is option b (An atom is a solid sphere)

Step-by-step explanation:

option 1

option 1 is scientifically accurate because nucleus is the center of the atom

option 2

option 2

option 2 is scientifically inaccurate because inside an atom nucleus is at the center and electrons are filled in the orbitals around the nucleus so an atom is not solid sphere.

option 3

option 3 is scientifically accurate because electrons have a negative charge

option 4

option 4 is scientifically accurate because electrons are filled in orbitals.