3.3 - Quantum Mechanical Model

Question 1

Quantization of electrons

Answer 1

The whole-number multiples of wavelengths
correspond to multiples of fixed quanta of energy
that the electron can have.

Question 2

Where is the electron located?

Answer 2

an orbital

Question 3

Heisenberg’s Uncertainty Principle

Answer 3

It is impossible to know the exact position and
speed of an electron at a given time.

Question 4

Quantum mechanics

Answer 4

Does not describe how an electron moves or even
if it moves.

Tells us statistical probability of finding the
electron in a given location in an atom. The area
where we are likely to find it is called an ……
ORBITAL!

Question 5

Electron Probability Density:

Answer 5

probability of finding
an electron at a given location, derived from wave
equations used to determine the shapes of
orbitals.

Question 6

What are the types of orbitals?

Answer 6

four types:
-s, p d and l

-nucleus is at the center of each orbital

Question 7

How can electrons move between orbitals?

Answer 7

By absorbing or emitting quanta of energy