Copy of Evaluate Atomic Models CER (7/30/2025)

Last updated 4 months ago
3 questions
In 1915, Danish scientist Niels Bohr proposed a model of the atom where electrons move in well-defined circular paths around the nucleus, much like planets orbiting the sun.
Scientists later learned that the motion of electrons is impossible to determine precisely. In the modern model of the atom, called the quantum mechanical model, electrons are described as moving in indistinct, three-dimensional regions in the space around the nucleus. These regions are known as atomic orbitals. Many atomic orbitals overlap to form what is described as an electron cloud.

Although the Bohr model of the atom is incorrect in some ways, does it still remain useful? Or should scientists only use the quantum mechanical model? Use the Claim-Evidence-Reasoning framework to build a scientific argument. After stating your claim, support it with evidence and scientific reasoning.

WARNING: No copy/pasting of any kind! No using ChatGPT or AI. You will receive a zero with no retake. Parent, coach & AP will be informed. This counts as a Mastery grade.

The rubric below will be used to grade your assignment.
Required
3

Claim: Although the Bohr model of the atom is incorrect in some ways, does it still remain useful? Or should scientists only use the quantum mechanical model?

Required
3

Evidence: Use data or knowledge to support your claim.

Required
3

Reasoning: Justify how the data and knowledge count as evidence toward supporting the claim.