DIA 2 Remediation

Front

What happens when electrons fall from the excited state back to the ground state?

Back

Energy is released and a photon of light is emitted.

Front

In which model of the atom do electrons exist in an electron cloud and occupy atomic orbitals?

Back

Quantum Mechanical Model.

Front

Who proposed a model of the hydrogen atom that explains atomic emissions spectra and energy states?

Back

Niels Bohr.

Front

What model of the atom describes a positively charged sphere with electrons embedded within it?

Back

Plum Pudding Model.

Front

What does the evolution of atomic theory demonstrate about the scientific process?

Back

Theories change as new information becomes available.

Front

What is the main focus of the Quantum Mechanical Model of the atom?

Back

It describes the probability of finding electrons in atomic orbitals.

Front

Who is known for the discovery of the electron?

Back

JJ Thomson.

Front

What did Ernest Rutherford's gold foil experiment demonstrate?

Back

The existence of a small, dense nucleus in the atom.

Front

What is the significance of Niels Bohr's model in atomic theory?

Back

It introduced quantized energy levels for electrons.

Front

What is the main idea behind John Dalton's atomic theory?

Back

Atoms are indivisible and combine in simple whole-number ratios to form compounds.