Electrons and Atomic Structure

Front

What happens when an electron absorbs a quantum of energy?

Back

The electron gets 'excited' and 'jumps out' away from the nucleus.

Front

In a Bohr model of the atom, what is the relationship between an electron's distance from the nucleus and its energy level?

Back

The closer an electron is to the nucleus, the lower its energy level.

Front

In Quantum Mechanics, what does a denser electron cloud indicate?

Back

The more likely the electron is to be found there.

Front

Who is best associated with the statement, 'we cannot know the exact location of an electron, instead it is a cloud of probabilities'?

Back

Quantum Mechanics.

Front

In a Bohr model of the atom, what is the energy level of an electron that is further away from the nucleus?

Back

The higher its energy level.

Front

Define an electron cloud.

Back

The region around the nucleus of an atom where electrons are likely to be found.

Front

What is the significance of the quantum number in atomic structure?

Back

Quantum numbers describe the energy levels and orbitals of electrons in an atom.

Front

Explain the concept of electron excitation.

Back

Electron excitation occurs when an electron absorbs energy and moves to a higher energy level.

Front

What is the principle of uncertainty in Quantum Mechanics?

Back

It states that we cannot simultaneously know the exact position and momentum of an electron.

Front

What does it mean for an electron to be in a 'ground state'?

Back

It is the lowest energy state of an electron in an atom.