1.1

Question 1

What is the relationship between energy values, Schrodinger, and wave functions

Answer 1

The Schrodinger equation can be solved for different specific, quantised energy values to give different wave functions.
–> For each quantised energy value the equation generates a wave function that shows how e- are distributed in space.

Question 2

What do we call a one electron wave function?

Answer 2

a one electron wave function is an orbital.

Question 3

What does the principal quantum number n describe?

Answer 3

• Energy of electrons in atoms with more than one electron (at least, broadly corresponds to)
• Describes distance from nucleus and orbital size
• As n increases, distance from nucleus increases, energy of electron increases, strength with which electron is bound to nucleus decreases, orbital size increases.

Question 4

what does the azimuthal quantum number (l) describe?

Answer 4

The shape of the electron distribution associated with a given orbital, by giving the number of preferred axes

Question 5

What is an orbital?

Answer 5

An orbital is a mathematical function describing the amplitude of an electron’s three dimensional matter wave.

Because amplitude can fluctuate between pos and neg values it has no physical meaning by itself. We can, however, talk about the shape of the electron distribution associated with a particular orbital, telling us where we are most likely to find an electron within the given orbital.

Question 6

What are the two characteristics of orbitals that tell us how they react?

Answer 6

• their electron distributions in 3D space

- their electron energies

Question 7

The visible spectrum for hydrogen is a line spectrum rather than a continuous spectrum. It is a line spectrum because:

Answer 7

There are discrete energy levels that thr electron in hydrogen can occupy

Question 8

What do quantum numbers describe?

Answer 8

Orbitals