Modern Atomic Theory

Front

What is the region outside the nucleus where an electron can most probably be found?

Back

Electron cloud.

Front

Who proposed that electrons are only found in specific, discrete circular orbits around the nucleus?

Back

Niels Bohr.

Front

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

Back

It releases energy in the form of light.

Front

What principle states that electrons fill the lowest energy orbitals/levels first before occupying higher energy levels?

Back

Aufbau Principle.

Front

How many d orbitals are found in a d sublevel?

Back

5.

Front

What is the term for the maximum number of electrons that can occupy a single orbital?

Back

2 (Pauli Exclusion Principle).

Front

What is the shape of an s orbital?

Back

Spherical.

Front

What is the shape of a p orbital?

Back

Dumbbell-shaped.

Front

What is the principle that states that no two electrons can have the same set of four quantum numbers?

Back

Pauli Exclusion Principle.

Front

What is Hund's Rule?

Back

Electrons will occupy degenerate orbitals singly before pairing up.