Modern Atomic Theory

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

• Albert Einstein

• Erwin Schrodinger

• Ernest Rutherford

• Niels Bohr

How many d orbitals are found in a d sublevel?

• 1

• 5

• 3

• 7

What orbital is shown in the picture?

• s orbital

• p orbital

• d orbital

• f orbital

Tags

NGSS.HS-PS1-1

What is the difference between a 1s orbital and a 2s orbital?

• The shape of the orbital

• The size of the orbital

• The number of electrons it can hold

• None of the above

Heisenberg's Uncertainty Principle states that it is impossible to know both the ___________ and the __________ of a particle at the same time.

• velocity, position

• velocity, energy

• position, energy

• velocity, speed

What states that every orbital of a subshell must be singly occupied before any orbital can have a pair?

• Pauli exclusion principle

• Hund's rule

• Aufbau principle

• None of the above

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

• Pauli exclusion principle

• Hund's rule

• Aufbau Principle

• None of the above

The p orbitals are shaped like

• circles.
• dumbbells.
• spheres.
• electrons.

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

• s sublevel.
• electron cloud.
• quantum.
• electron configuration

Which of the following best describes the shape of d orbitals?

• Peanut shaped

• Spherical shaped

• Dumbbell shaped

• Clover leaf shaped