Unit 2 Review

Max Plank developed which of the following theories?

Which scientist stated that electrons are located outside of the nucleus?

Which scientist developed the Solid Sphere Model?

Electrons on the innermost shell of an atom are the ones responsible for creating chemical reactions.

Which scientist discovered the electron?

Which scientist stated that electrons orbit around the nucleus?

Which scientist stated that the nucleus is very dense and has a positive charge?

Using a catalyst decreases the reaction rate, because it lowers the activation energy.

Electrons behave like waves

Atoms remain in the same position around the nucleus

Frequency times wavelength equals the speed of light.

Which of the following is NOT one of the 3 components that make up the collision theory?

The mass of a given atom is always the same.

The mass of a given atom is always the same.

An isotope is any of 2 or more forms of a chemical element.

The molecules that are made in a chemical reaction are called products.

Which scientist developed the plum pudding model?

Which of the following is NOT one of the 3 ways to describe the quantum theory model?

The number of protons equals the atomic mass.

Which model is the most recent discovery of the atomic models?