quantum model and electrons

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

• Albert Einstein

• Erwin Schrodinger

• Ernest Rutherford

• Niels Bohr

Who used theoretical calculations and experimental results to devise and solve a mathematical equation describing the behavior of the electron in all atoms correctly?

• JJ Thomson

• Niels Bohr

• Erwin Schrodinger

• James Chadwick

What orbital is shown in the picture?

• s orbital

• p orbital

• d orbital

• f orbital

When atoms _____________ energy, their electrons move to higher energy levels. These electrons _____________ energy by emitting light when they return to lower energy levels.

• lose, absorb

• absorb, lose

• lose, lose

• absorb, absorb

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

Which of the following statements about the Schrödinger wave equation is not true?

• the quantum mechanical model of the electron comes from this equation
• this equation supports the Bohr model of electron orbits
• solutions to this equation are called wave functions
• quantization of electron energies is required to solve the equation

Particles whose motions are better described by quantum mechanics can only gain or lose energy in discrete units called

• monsters
• Quanta
• Protons
• Electrons

p orbitals are __________ shaped

• ball
• dumb bells
• cloud
• funky

There are 4 different types of sublevels: s,p,d,f

• true
• false

Which main energy level is furthest from the nucleus ?

• 1
• 2
• 3