Atomic Theory Quick Quiz

Which scientist came up with the planetary model, which stated that electrons orbit the nucleus like planets and are arranged in a set pattern on energy shells according to their energy levels?

Bohr

This scientist discovered the neutron particle and that it had the greatest mass

Chadwick

This scientist was credited for creating several laws regarding the behavior and workings of atoms, such as "The Law of Conservation of Matter" and "The Law of Definite Proportions"

Dalton

Who was the first to say that MATTER could be broken down into smaller parts; he gave the atom its name by saying the smallest particle is indivisible, or "Atomos".

Democritus

We NOW (currently) know that electrons move slowly on orbits around the nucleus.

False

The ___________ is the name of the model that mirrors our current understanding of the atom

Quantum Model

This scientist discovered the proton and the nucleus, leading him to also discover that most of the atom is actually made up of empty space where the electrons reside.

Rutheford

Which scientist came up with this model that said electrons floated freely in a positively charged space? It is often referred to as the Plum Pudding Model

Thomson

Who discovered the electron?

Thomson

Who was the first scientist that said that ATOMS could be broken down into smaller parts when he discovered the first subatomic particle.

Thomson

The number of protons and electrons is equal on the periodic table, because the periodic table is assumed to be neutral

true