Quantum Mechanical Model & Orbitals

Which atomic model most accurately represents the electron cloud and electron behavior?

• Bohr Model

• Planetary Model

• Quantum Mechanical Model

• Nuclear Model

Which of the following describes the properties of the Quantum Mechanical Model?

• electrons are located in orbits and move around the nucleus

• electrons are located in orbitals found in the electron cloud

• electrons move in and out of the nucleus at speed of light

Which of the following correctly shows the number of electrons that fit on each shell of the atom?

• shell one- 2e

  shell two- 8e

  shell three -18e

• shell one- 2e

  shell two- 10e

  shell three -18e

• shell one- 2e

  shell two- 18e

  shell three -32e

Tags

NGSS.MS-PS1-1

How many electrons fit inside each orbital?

• 1

• 2

• 8

• 18

To be inside the same orbital, electrons must move in opposite directions. This is called:

• opposite orbital

• opposite speed

• opposite spin

Choose TWO correct descriptions for this diagram

• the box represents one orbital

• the arrows represent electrons

• the arrows represent the proton number

• the box represents the shell

Tags

NGSS.HS-PS1-1

Why are the arrows pointing in different directions?

• the arrows show the direction of the nucleus

• the arrows represent electrons moving in opposite directions

• the arrows represent the protons pull on the valence electrons

Tags

NGSS.HS-PS1-1

How many electrons can fit inside of an s-orbital?

• 2

• 4

• 10

• 8

How many electrons can fit inside of an p-orbital?

• 2

• 4

• 6

• 8

How many electrons can fit inside of an d-orbital?

• 2

• 4

• 6

• 10