Atomic Models

Front

What is the probable location of electrons according to the wave mechanical model?

Back

Orbital

Front

Who discovered the electron using the cathode-ray tube?

Back

Thomson

Front

In the Bohr model, what are the regions where electrons exist called?

Back

Energy levels

Front

What electron transition in an excited atom results in a release of energy?

Back

Fifth shell to second shell

Front

Which scientist proposed that atoms were hard spheres?

Back

Dalton

Front

What is the main idea of the wave mechanical model of the atom?

Back

Electrons are found in orbitals, which are regions of probability rather than fixed paths.

Front

What is the significance of the cathode-ray tube in atomic theory?

Back

It was instrumental in the discovery of the electron, leading to the development of modern atomic models.

Front

How do energy levels in the Bohr model relate to electron transitions?

Back

Electrons can move between energy levels, and transitions between these levels can result in the absorption or emission of energy.

Front

What happens when an electron transitions from a higher energy level to a lower energy level?

Back

Energy is released, often in the form of light.

Front

What was Dalton's contribution to atomic theory?

Back

He proposed that atoms are indivisible and that they combine in fixed ratios to form compounds.